Branko Stanovnik

Branko Stanovnik's AcademicInfluence.com Rankings

Branko Stanovnik

Chemistry

#3151

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#4143

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Organic Chemistry

#496

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#574

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Chemistry

Branko Stanovnik's Degrees

PhD Chemistry University of Ljubljana

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Branko Stanovnik's Published Works

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Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Synthesis of heterocycles from alkyl 3-(dimethylamino)propenoates and related enaminones. (2004) (398)
Application of alkyl 3-dimethylamino-2-(1H-indol-3-yl)propenoates in the synthesis of 3-heteroarylindoles (2004) (60)
Synthesis of pyridazine derivatives—VIII : Imidazo(1,2,-b)pyridazines and some tricyclic aza analogs (1967) (59)
Regioselective 1,3‐Dipolar Cycloadditions of (1Z)‐1‐(Arylmethylidene)‐5,5‐dimethyl‐3‐oxopyrazolidin‐1‐ium‐2‐ide Azomethine Imines to Acetylenic Dipolarophiles (2001) (55)
Stereocontrol in cycloadditions of (1Z,4R*,5R*)-1-arylmethylidene-4-benzoylamino-5-phenylpyrazolidin-3-on-1-azomethine imines (2005) (54)
2‐Substituted 3‐dimethylamino‐ and ‐3‐cyanopropenoates in the synthesis of heterocyclic systems (1999) (50)
2.12 – Pyridazines and their Benzo Derivatives (1984) (49)
Heterocycles. CXVIII. Pyridazines. LXVI. Novel method of annelation of the 1,2,4-triazole ring of the N2-C3 bond to azines (1974) (48)
A Simple Stereoselective Synthesis of Aplysinopsin Analogs (2000) (46)
Reaction of methyl (2E)-3-dimethylamino-2-(1H-indol-3-yl)-propenoate with ureas: facile entry into the polycyclic meridianin analogues with uracil structural unit (2005) (45)
Methylation of heterocyclic compounds containing NH, SH and/or OH groups by means of N,N-dimethylformamide dimethyl acetal (1981) (42)
Δ2-1,2,3-Triazolines (1984) (42)
The Tautomerism of Heterocycles: Substituent Tautomerism of Six-Membered Ring Heterocycles (2006) (39)
Chiral solvating properties of (S)-1 -benzyl -6 -methylpiperazine -2,5 -dione (2007) (39)
Dimethylamine substitution in N,N-dimethyl enamines. Synthesis of aplysinopsin analogues and 3-aminotetrahydrocoumarin derivatives (2001) (39)
1,3-Dipolar cycloadditions of diazoalkanes to some nitrogen containing heteroaromatic systems (1991) (37)
Transformation of Amines and N-Heteroarylformamidines into Esters of Substituted b-Amino-a,b-dehydro-a-amino Acids (1988) (36)
Parallel synthesis of 3-amino-4H-quinolizin-4-ones, fused 3-amino-4H-pyrimidin-4-ones, and fused 3-amino-2H-pyran-2-ones. (2006) (36)
Advances in Pyridazine Chemistry (1991) (35)
The synthesis of pyrazolo[1,2-a]pyrazoles. Regio- and stereo-selective 1,3-dipolar cycloadditions of (1Z)-rel-(4R,5R)-1-arylmethylene-4-benzoylamino-5-phenyl-3-pyrazolidinon-1 -azomethinimines (1997) (35)
Aminoacids in the synthesis of heterocyclic systems. The synthesis of methyl 2‐acetylamino‐3‐dimethylaminopropenoate and 2‐(N‐methyl‐N‐trifluoroacetyl)amino‐3‐dimethylaminopropenoate and their application in the synthesis of heterocyclic compounds (1997) (34)
[2+2] Cycloaddition of electron-poor acetylenes to (E)-3-dimethylamino-1-heteroaryl-prop-2-en-1-ones: synthesis of highly functionalized 1-heteroaroyl-1,3-butadienes (2010) (33)
Synthesis of pyridazine derivatives—XV: Some electrophilic substitutions on imidazo[1,2-b]-pyridazines (1968) (33)
Reactions of some diazoazoles with reactive methylene and other groups (1976) (32)
Correlation of ring nitrogen substituents with carbon‐13 nuclear magnetic resonance data in azoloazines (1987) (31)
The synthesis of methyl 2-(benzyloxycarbonyl)amino-3-dimethylaminopropenoate. The synthesis of trisubstituted pyrroles, 3-amino-2H-pyran-2-ones, fused 2H-pyran-2-ones and 4H-pyridin-4-ones (1999) (30)
Enaminone‐Based Synthesis of Dipodazine Derivatives (2006) (30)
Reactions of N-heteroarylformamide oximes and N-heteroarylacetamide oximes with N,N-dimethylformamide dimethyl acetal. Synthesis of 2-methyl-s-triazolo[1,5-x]azines and N-methylcyanoaminoazines (1982) (29)
A simple metal-free synthesis of 2-substituted pyridine-4,5-dicarboxylates and their N -oxides (2012) (29)
Synthesis of (S,Z)-3-[(1H-indol-3-yl)methylidene]hexahydropyrrolo[1,2-a]pyrazin-4(1H)-one: an alternative, enaminone based, route to unsaturated cyclodipeptides (2008) (29)
Enaminone, Enaminoesters, and Related Compounds in the Metal-Free Synthesis of Pyridines and Fused Pyridines (2019) (28)
1,3‐Dipolar cycloadditions of diazoalkanes to pyridazines. Asymmetric 1,3‐dipolar cycloadditon of azomethine imines derived from diazoalkane‐pyridazine cycloadducts (1998) (28)
The synthesis and transformations of ethyl (Z)-2-[2,2-bis(ethoxycarbonyl)vinyl]amino-3-dimethylaminopropenoate, a new reagent in the synthesis of heterocyclic compounds (1995) (28)
The Synthesis of 2-Substituted 3-Dimethylaminopropenoates and Related Compounds and Their Application to the Synthesis of Heterocyclic Systems (1997) (28)
Methyl 2-benzoylamino-3-dimethylaminopropenoate in the synthesis of heterocyclic systems. The synthesis of benzoyl- amino substituted 7H-pyrano[2,3-d]pyrimidine, 1H,6H-pyrano- [2,3-c]pyrazole and 2H-1-benzopyran derivatives† (1989) (27)
3‐DIAZOPYRAZOLO(3,4‐B)PYRIDINE, A VERSATILE SYNTHON FOR NEW HETEROCYCLIC SYSTEMS (1978) (27)
Heterocycles. 182. Neighboring group interaction in ortho-substituted heterocycles. 2. 1,2,4-Oxadiazolylpyridines and pyrido[2,3-d]pyrimidine 3-oxides (1979) (27)
Transformation of Amino Acids into Nonracemic 1‐(Heteroaryl)ethanamines by the Enamino Ketone Methodology (2006) (26)
Methyl 2‐[bis(acetyl)ethenyl]aminopropenoate in the synthesis of heterocyclic systems (1997) (26)
Pyridazines. XXXIII. Valance isomerizations of some tetrazolo[1,5-b]pyridazines (1970) (26)
Synthesis and antimycobacterial activity of alkyl 1‐heteroaryl‐1H‐1,2,3‐triazole‐4‐carboxylates (2005) (25)
Copper(i) Iodide-Catalyzed Cycloadditions of (1Z,4R*,5R*)-4-Benzamido-5-phenylpyrazolidin-3-on-1-azomethine Imines to Ethyl Propiolate (2009) (25)
Stereoselective cycloadditions of (1Z,4R∗,5R∗)-1-arylmethylidene-4-benzoylamino-5-phenylpyrazolidin-3-on-1-azomethine imines to maleimides (2007) (25)
A simple synthesis of aplysinopsin analogues by dimethylamine substitution in N,N-(dimethylamino)methylidene derivatives of five-membered heterocycles (2001) (25)
The synthesis and transformations of substituted 2-hydroxy-3-dimethylaminopropenoates. The preparation of condensed 3-hydroxypyran-2-ones (1998) (25)
Cyanoamino compounds in synthesis syntheses of some heterocycles (1983) (25)
Synthesis of pyridazine derivatives. XXI. Tetrazolo-azido transformations in some fused azolopyridazines (1968) (24)
Syntheses and transformations of some heterocyclic hydroxylamines (1981) (24)
Regioselective synthesis of ethyl pyrazolecarboxylates from ethyl 3-[(dimethylamino)methylidene]pyruvate and diethyl 3-[(dimethylamino)methylidene]-2-oxosuccinate. Isolation of ethyl 4,5-dihydro-1-heteroaryl-5-hydroxy-1H-pyrazole-5-carboxylates as stable intermediates in the pyrazole ring formation (2003) (24)
Parallel solution-phase synthesis of (Z)-3-(arylamino)-2,3-dehydroalanine derivatives and solid-phase synthesis of fused pyrimidones. (2004) (24)
Methyl and Phenylmethyl 2-Acetyl-3-{[2-(dimethylamino)-1-(methoxycarbonyl)ethenyl]amino}prop-2-enoate in the Synthesis of heterocyclic systems: Preparation of 3-amino-4H-pyrido-[1,2-a]pyrimidin-4-ones (1997) (24)
Alkyl 2-(2-benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3-dimethylaminopropenoates in the synthesis of heterocyclic systems (1997) (24)
Recent Advances in Pyridazine Chemistry (1979) (23)
Transformations of N‐heteroarylformamidines into derivatives of β‐heteroarylamino‐α,β‐dehydro‐α‐amino acids, β‐heteroarylamino‐α‐amino acids, and dipeptides (1987) (23)
Cyclocondensations of (+)-camphor derived enaminones with hydrazine derivatives (2005) (23)
Methyl 2‐benzoylamino‐3‐dimethylaminopropenoate in the synthesis of heterocyclic systems. An attempt to prepare benzoylamino substituted azolo‐ and azinopyrimidines with a bridgehead nitrogen atom (1990) (23)
A new synthesis of C-nucleosides by 1,3-dipolar cycloaddition of chiral azomethine imines to methyl acrylate the stereoselective synthesis of fused pyrazoles (1992) (23)
Stereoselective synthesis of (1R,3R,4R)-3-(1,2,4-triazolo[4,3-x]azin-3-yl)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ones (2002) (23)
HETEROCYCLES. 167. TELESUBSTITUTION AND OTHER TRANSFORMATIONS OF IMIDAZO(1,2-A)- AND S-TRIAZOLO(4,3-A)PYRAZINES (1978) (23)
Regiospecific [2+2] cycloadditions of electron-poor acetylenes to (Z)-2-acylamino-3-dimethylaminopropenoates : synthesis of highly functionalised buta-1,3-dienes (2008) (22)
Preparation of polysubstituted isochromanes by addition of ortho-lithiated aryloxiranes to enaminones. (2013) (22)
Heterocycles. 168. Neighboring group interaction in ortho-substituted aminopyridines. Pyridopyrimidines and related systems (1978) (22)
Convenient Cyclization of oDifunctional Heterocycles with N,N-Dimethylformamide Dimethyl Acetal (1974) (22)
STEREOSELECTIVE 1,3-DIPOLAR CYCLOADDITIONS TO (S)-1-BENZOYL-3-(CYANOMETHYLIDENE)-5-(METHOXYCARBONYL)PYRROLIDIN-2-ONE (1998) (22)
The synthesis of β‐heteroarylamino‐α,β‐dehydro‐α‐amino acid and β‐heteroarylamino‐α‐amino acid derivatives (1989) (21)
REACTIONS OF ETHYL (Z)-2-2,2-BIS(ETHOXYCARBONYL)VINYL-AMINO-3-DIMETHYLAMINOPROPENOATE WITH C-NUCLEOPHILES. SYNTHESIS OF SUBSTITUTED 3-AMINO-2H-PYRAN-2 -ONES (1997) (21)
Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. The Synthesis of Substituted 3-Benzoylamino-2H-pyran-2-ones (1990) (21)
Synthesis and transformations of methyl (E)‐2‐(acetylamino)‐3‐cyanoprop‐2‐enoate und methyl (E)‐2‐(benzoylamino)‐3‐cyanoprop‐2‐enoate, versatile reagents for the preparation of polyfunctional heterocyclic systems (1998) (21)
Synthesis and chemical reactivity of some 1,2,4-Thiadiazolo[2,3-a]-pyrimidines and related compounds† (1977) (21)
The synthesis of s-triazolo[4.3-a] 1,3,5-triazines (1970) (21)
Heteroacyl azides as acylating agents for aromatic or heteroaromatic amines (1980) (21)
Methyl ( Z )-2-[(Benzyloxycarbonyl)amino]-3-dimethyl- aminopropenoate in the Synthesis of Heterocyclic Systems. Synthesis of (Benzyloxycarbonyl)amino Substituted Fused Pyrimidinones (1999) (20)
Pyridazines. XXXVII. Pyrimido[1,2-b]pyridazines (1971) (20)
Nitrosation of methyl 2-acylamino-3-dimethylaminopropenoates. A simple conversion of n-acylglycines into 5-substituted 1,2,4-Oxadiazole-3-carboxylates (1995) (20)
Parallel synthesis of 7-heteroaryl-pyrazolo[1,5-a]pyrimidine-3-carboxamides (2013) (20)
A novel synthesis of s-triazoloazines fused at the N2C3 bond of the triazole ring (1973) (20)
Combinatorial solution-phase synthesis of alkyl (1S*,2S*,3R*,5R*,6R*)-1-alkyl-3-aryl-6-benzoylamino-1-hydroxy-7- oxo-5-phenylhexahydropyrazolo[1,2-a]pyrazole-2-carboxylates. (2007) (20)
Synthesis of pyridazine derivatives—XXVIII : Tetrazolo-azido isomerizations in some fused tetrazolopyridazines (1969) (20)
Methyl 2-benzoylamino-3-dimethylaminopropenoate in the synthesis of fused pyranones. The synthesis of derivatives of tetrahydro-2H-1-benzopyran-2-one, isomeric 2H-naphtho[1,2-b]pyran-2-one and 3H-naphtho[2,1-b]pyran-3-one, pyrano[3,2-c]benzopyran-2,5-dione, and 7H-pyrano[2,3-d]pyrimidin-7-one (1990) (20)
The synthesis and transformations of 2-ethoxycarbonyl-3-isothiocyanatopyridine. Pyrido[3,2-d]pyrimidines and some azolopyrido[3,2-d]pyrimidines (1990) (20)
A new approach for the synthesis of fused imidazoles: the synthesis of 3-acyl-substituted imidazo [1,2-x] azines (1984) (20)
Regio- and Stereoselective One-Pot Synthesis of Unknown Oxazoline-Fused Pyridazines by ‘Michael Addition-Pyridazine Cyclization-Oxazoline Cyclization’ Cascade Reactions of 4-Chloro-1,2-diaza-1,3-butadienes with 3-Dimethylaminopropenoates (2007) (19)
Transformations of N-heteroarylformamidines: a novel synthesis of imidazo/2,1-b/thiazole and imidazo/2,1-b//1,3,4/thiadiazole derivatives (1986) (19)
Synthesis and activity of some 1,2,4-triazolylthiazolidones. (1971) (19)
2-Benzoyl-2-ethoxycarbonylvinyl-1 and 2-benzoylamino-2-methoxy-carbonylvinyl-1 as N-protecting groups in peptide synthesis. Their application in the synthesis of dehydropeptide derivatives containing N-terminal 3-heteroarylamino-2,3-dehydroalanine† (1997) (19)
NMR Studies of Substituted 2,3‐Diaminopropenoates (1997) (19)
Unexpected behavior of the reaction between 1,2-diaza-1,3-butadienes and 3-dimethylaminopropenoates: a useful entry to new pyrrolines, pyrroles, and oxazolines. (2005) (19)
Synthesis of pyridazine derivatives. 13. Formation of some substituted imidazo (1.2-b) pyridazines. (1967) (18)
Transformations of Ethyl 3‐{[1‐(Alkoxycarbonyl)‐2‐(dimethylamino)ethenyl]amino}‐2‐cyanoprop‐2‐enoates: Synthesis of Dialkyl 3‐Aminopyrrole‐2,4‐dicarboxylates (1998) (18)
Photoelectron spectroscopy of heterocycles. Azaindenes and azaindolizines (1980) (18)
Heterocycles. LXXXII. Some investigations on 1,2,3-benzotriazines (1971) (17)
Alkyl 2-[2,2-Disubstituted Ethenyl]amino-3-dimethylaminopropenoates in the Synthesis of Heterocyclic System. An Alternative Method for Preparation of 3-Amino-4H-pyrido[1,2-a]pyrimidin-4-ones (1998) (17)
Heterocycles. CII. Barriers to rotation in some N′-Heteroaryl N,N-dimethylformamidines (1974) (17)
Synthesis and reductions of (1R,4E,5S)-4-oximino-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-3-one (2005) (17)
Ruthenium complexes as inhibitors of the aldo-keto reductases AKR1C1-1C3. (2015) (17)
A New Synthesis of Pyrido[1,2-a]-1,3,5-triazines (1972) (17)
Stereoselective additions to the exocyclic CC bond of some α-alkylidene-(+)-camphor derivatives (2006) (17)
Diethyl N,N‐dimethylaminomethylenemalonate in the synthesis of fused heterocyclic systems (1996) (17)
Synthesis and properties of N-substituted (1R,5S)-4-aminomethylidene-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-2-ones (2004) (17)
A NOVEL METHOD FOR THE CONVERSION OF HETEROCYCLIC AZIDES INTO AMINES BY AN AZA-TRANSFER REACTION (1977) (17)
Synthesis of (1R,4E,5S)-4-{[(E)-(azinyl)diazenyl]methylidene}-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-3-ones and (1R,4R,5R)-4-([1,2,4]triazolo[4,3-x]azin-3-yl)-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-3-ones (2005) (16)
A simple one pot synthesis of 1‐(s‐triazolo[4,3‐x]azinyl‐3)‐substituted polyols (1997) (16)
1,3-Dipolar Cycloadditions to (5Z)-1-Acyl-5-(cyanomethylidene)- imidazolidine-2,4-diones: Synthesis and Transformations of Spirohydantoin Derivatives (2001) (16)
Heterocycles. L. Synthesis of pyridazine derivatives. 14. Polyaza heterocycles derived from pyrido[2,3-d]pyridazine (1967) (16)
The synthesis of ethyl 2‐[(2,2‐dibenzoyl)ethenyl]amino‐3‐dimethyl‐aminopropenoate and its application to the synthesis of fused 3‐aminopyran‐2‐ones and 3‐aminoazolo‐ and ‐azinopyrimidin‐4(4H)‐ones (1998) (16)
Oxidative ring‐opening of rel‐(2R,3R,5S)‐5‐aryl‐2‐benzoylamino‐6,7‐bis(methoxycarbonyl)‐2,3‐dihydro‐1‐oxo‐3‐phenyl‐1H,5H‐pyrazolo[1,2‐a]‐pyrazoles. Synthesis of rel‐(2R,3R)‐3‐phenyl‐3‐[5‐aryl‐3,4‐bis(methoxycarbonyl)pyrazolyl‐1]alanine esters (1999) (16)
Indazoles in organic synthesis: Formation of some fused heterocycles☆ (1976) (16)
Transformations of enaminones. A simple one-pot synthesis of imidazolone derivatives (2012) (16)
Chapter 2 - Methyl 2-Benzoylamino-3-Dimethylaminopropenoate in the Synthesis of Heterocyclic Systems (1993) (16)
Transformations of Alykl (5-Oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetates into 5-Heteroaryl-3-oxo-2-phenyl-3,5-dihydro-2H-pyrazolo[4,3-c]pyridine-7-carboxylates (2003) (16)
Reactions of azidoazolopyridazines with 1,3-dicarbonyl compounds (1974) (16)
Influence of Lewis acids on the Diels–Alder reaction. II. Rearrangement of 1- and 1,4-substituted diethyl 7-oxabicyclo[2•2•1]2,5-heptadiene-2,3-dicarboxylate adducts to 4- and 4,6-substituted diethyl 3-hydroxyphthalates (1969) (16)
Heterocycles. CXV. Reactions of 3-diazo-3H-indazole with reactive methylene compounds and formation of indazolo[3,2-c]-1,2,4-triazines, a new heterocyclic system (1974) (16)
A synthesis of 1-substituted 5-[2-(acylamino)ethyl]-1H-pyrazole-4-carboxamides (2009) (16)
Notes: The Structure of 2-Substituted Amino-1,3,4-thiadiazoles (1960) (16)
Reactions of enaminones and related compounds with N,N-dimethylacetamide dimethyl acetal. A simple one-pot metal-free synthesis of polysubstituted benzene derivatives (2014) (16)
Synthesis of pyridazine derivatives—XVI : Methyl substituted imidazo(1.2-b)pyridazines by synthesis and homolytic methylation (1968) (16)
Synthesis of pyrazolo[1,2-a]pyrazole-based peptide mimetics (2013) (16)
Pyridazines. XXXIV. Electron‐impact induced fragmentation of some s‐triazolo[4,3‐b] pyridazines, tetrazolo[1,5‐b] pyridazines and related compounds (1970) (16)
Heterocycles. 167. Telesubstitution and other transformations of imidazo[1,2-a]- and s-triazolo[4,3-a]pyrazines (1977) (15)
Heterocycles. LVII. Synthesis of pyridazine derivatives. 20. Orientational effects in some new polynuclear systems containing a pyridazine ring (1968) (15)
Transformations of 1,2,4-thiadiazolo/2,3-x/azines (1987) (15)
3-Diazo-4-oxo-3,4-dihydroquinoline. A novel synthon for indole-3-carboxamides (1977) (15)
Pyridazines. XXXV. Oxidation products of some simple and bicyclic pyridazines (1970) (15)
Ruthenium complexes as inhibitors of 15-lipoxygenase-1 (2015) (15)
Reductive ring cleavage of 1‐alkyl‐4‐benzoylamino‐5‐phenyl‐3‐pyrazolidinones with raney‐nickel alloy. Synthesis of N‐benzoyl‐3‐alkylamino‐3‐phenylalanine amides from rel‐(4R,5R)‐4‐benzoylamino‐5‐phenyl‐3‐pyrazolidinone (1999) (15)
Pyridazines. XLII. Tetrazolo-Azido Isomerization of Isomeric Pyridotetrazolo[1,5-b]pyridazines (1971) (15)
The synthesis and transformations of 3‐ethoxycarbonyl‐2‐isothiocyanatopyridine. Pyrido[2,3‐d]pyrimidines and some azolopyrido[2,3‐d]pyrimidines (1990) (15)
Regioselective synthesis of 1- and 4-substituted 7-oxopyrazolo[1,5- a ]pyrimidine-3-carboxamides (2014) (15)
Stereoselective Synthesis of 5-[(Z)-Heteroarylmethylidene] Substituted Hydantoins and Thiohydantoins as Aplysinopsin Analogs (2002) (15)
1,3-dipolar cycloadditions of diazolakanes to heteroaromatic systems new simple syntheses of C-nucleosides (1993) (15)
α-Amino acid derived enaminones and their application in the synthesis of N-protected methyl 5-substituted-4-hydroxypyrrole-3-carboxylates and other heterocycles (2013) (14)
Synthesis of 4‐ and 5‐(s‐triazolo[4,3‐b]pyridazinyl‐3)‐substituted cyclic polyols (1998) (14)
Syntheses and transformations of some 1,2,4‐oxadiazolylpyrazines (1982) (14)
Imidazo[1,2-b]pyridazines and an imidazo[l,2-a]pyrazine from pyridazin- and pyrazin-amines (1983) (14)
1,3-dipolar cycloaddition of 2-diazopropane to 2-methyl-6-phenylpyridazin-3(2H)-one. The formation of pyrazolo/3,4-D/pyridazine derivatives (1990) (14)
Transformations of(S)-1-Acyl-3-[(E)-(dimethylamino)methylidene]-5-(methoxycarbonyl)pyrrolidin-2-ones.A One-Step Synthesis of(S)-N-Benzoyl-3-(1-heteroaryl-5-hydroxy-1H-pyrazolyl-4)alanine Esters (2000) (14)
THE SYNTHESIS OF AZATRYPTOPHANE DERIVATIVES (1994) (14)
Synthesis of Enaminone-Based Vinylogous Peptides (2014) (14)
Amino acids as synthons for heterocycles. Formation of 1,2,4-triazine derivatives (1990) (14)
The synthesis and transformation of ethyl 2‐(2‐acetyl‐2‐benzoyl‐1‐ethenyl)amino‐3‐dimethylaminopropenoate. A new synthesis of 2,3,4‐trisubstituted pyrroles (1997) (14)
Synthesis of pyridazine derivatives XXII. s‐triazolo[4, 3‐b]pyridazine 5‐oxides (1968) (14)
A Simple Synthesis of 5‐(2‐Aminophenyl)‐1H‐pyrazoles (2011) (14)
[2 + 2] Cycloadditions of Electron-Poor Acetylenes to (5Z)-5-[ (Dimethylamino)methylene ]imidazolidine-2,4-diones (2009) (14)
A simple synthesis of 4-(2-aminoethyl)-5-hydroxy-1H-pyrazoles (2007) (13)
Heterocycles. CXLII. Synthesis of some triazoloazine 3-oxides (1976) (13)
[2+2] Cycloaddition of Electron-poor Acetylenes to Enaminones, Enamino Esters and Related Systems. Rearrangements and Ring-expansion Reactions (2014) (13)
Combinatorial solution-phase synthesis of (2S,4S)-4-acylamino-5-oxopyrrolidine-2-carboxamides. (2007) (13)
Heterocycles. CLXIX. Barriers to rotation in someN,N-Dimethyl-N′-heteroaryl,N,N-Diethyl-N′-heteroaryl-substituted formamidines andN,N-Dimethyl-N′-heteroaryl-substituted acetamidines (1978) (13)
Ring-opening reactions of triazolo- and tetrazolo-pyridopyrimidines or quinazolines with some carbon nucleophiles (1985) (13)
NITROSATION OF METHYL 2-CINNAMOYLAMINO-3-DIMETHYLAMINO-PROPENOATES. ALKYL N-CINNAMOYLOXALIC ACID HYDROXYIMIDIC AMIDES, INTERMEDIATES IN THE SYNTHESIS OF ALKYL 5-STYRYL-1,2,4-OXADIAZOLE-3-CARBOXYLATES (1997) (13)
Alkyl (E,Z)-2-(2-benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3-dimethylaminopropenoates in the synthesis of fused pyrimidinones. A facile route to 3-aminoazino-4H-pyrimidin-4-ones (1997) (13)
Application of aza-transfer to organic compounds : Reactions between heterocyclic diazo compounds and hydrazines (1977) (13)
DISSOCIATION CONSTANTS AND STRUCTURE OF ERGOTHIONEINE. (1964) (13)
Heterocycles. CXXVII. Action of sulfur on some heterocyclic compounds. Formation of thioamides, oxidative cyclization and thiation (1975) (13)
Applications of magnetic circular dichroism: a hammett-like equation for structural work ― Determination of protonation sites in azaindolizines (1985) (13)
Transformations of (1E,3E)-1-(benzoylamino)-4-(dimethylamino)buta-1,3-diene-1,2,3-tricarboxylates into pyridine and pyrrole derivatives (2008) (13)
Potential ambifunctionality of 2-azidopyrido[1,2-a] pyrimidin-4-one (1974) (13)
THE SYNTHESIS AND TRANSFORMATIONS OF METHYL 2-2,2-BIS(ETHOXYCARBONYL)ETHENYLAMINO-3-DIMETHYL-AMINOBUT-2-ENOATE. THE SYNTHESIS OF 3-AMINO-2-METHYL-4H-P YRIDO1,2-ALPHA PYRIMIDIN-4-ONES (1997) (13)
[2+2] Cycloaddition of Electron-Poor Acetylenes to Enaminones (2011) (13)
A new approach for the synthesis of fused pyrroles. The synthesis of acyl substituted pyrrolo[1,2‐x]azines (1993) (13)
The Tautomerism of Heterocycles. Six-Membered Heterocycles: Part 1, Annular Tautomerism (2001) (12)
Reaction between 6-azidoazolopyridazines or 2-azidopyrido[1,2-a]pyrimid-4-one and some secondary aliphatic amines (1976) (12)
1,3‐Dipolar cycloadditions of (4R*,5R*)‐1‐alkylidene‐4‐(benzoylamino)‐5‐phenyl‐3‐pyrazolidinon‐1‐azomethine imines (2008) (12)
Amino acids in the synthesis of heterocyclic systems. The synthesis of 4-oxo-4H-pyrido[1,2-a]pyridines and 4-oxo-4H-pyrido[1,2-a]pyrimidines (1994) (12)
Regio- and stereoselective cycloadditions of (1Z,4R∗,5R∗)-1-arylmethylidene-4-benzoylamino-3-oxo-5-phenylpyrazolidin-1-ium-2-ides to methyl methacrylate (2011) (12)
1,3-Diradical intermediates in 3H-pyrazole photolyses: 1,4 addition to dienes (1986) (12)
Syntheses in the pyridazine series. XXX. Protonation and quaternization studies on imidazo[1,2-b] pyridazines and s-triazolo[4,3-b] pyridazines (1969) (12)
A Synthesis of Some Novel 2-Phenyl- and 5-Bromo-substituted Aplysinopsin Analogues (2002) (12)
Heterocyclic diazo compounds as starting materials in organic synthesis (review) (1980) (11)
Synthesis of 2-unsubstituted 2,3,5,6,7,8-hexahydropyrazolo [4,3 -d][1,2 ]diazepinone -8 -carboxylates (2007) (11)
A simple stereoselective one-pot synthesis of C-nucleosides by 1,3-dipolar cycloaddition of chiral azomethine imines prepared in situ† (1993) (11)
Reductions of (1R,3R,4R)-3-([1,2,4]triazolo[4,3-x]azin-3-yl)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ones and their analogues (2006) (11)
Pyridazines. XXIV. Syntheses of some thiazolopyridazinium systems (1969) (11)
Reaction of Methyl 2-Bensoylamino-3-dimethylaminopropenoate with Heterocycilc Hydroxy Compounds. The Synthesis of Fused Pyranoazines (1993) (11)
The structure of β‐heteroaryl‐α,β‐dehydro‐α‐amino acid derivatives, intermediates in the synthesis of fused pyran‐2‐ones. Substituted methyl (Z)‐2‐benzoylamino‐3‐(5‐oxopyrazolinyl‐4)propenoates (1991) (11)
THE REACTION OF SOME COMPOUNDS CONTAINING THIOAMIDE GROUPS WITH 2,4,6-TRICHLORO-1,3,5-TRIAZINE (1966) (11)
Product Class 1: Pyrazoles (2003) (11)
Pyridazines. LI. Synthetic approaches to pyridazino(2,3-a)-1,3,5-triazines, a novel heterocyclic system. (1972) (11)
Heterocycles; CCI. A Novel Synthesis of Heterocyclic Thioformylamines (1981) (11)
Pyridazines. XXXVIII. Pyrrolo[1,2-b] pyridazines and 4H-4a,7b-diazacyclopent[cd] indenes (1971) (11)
Reaction of some azolopyrido[2,3-d]pyrimidines with active methylene compounds (1983) (11)
Coupling of heteroaryldiazonium tetrafluoroborates with 1,3-dicarbonyl compounds: Regioselective synthesis of alkyl 1-heteroaryl-4-hydroxy-1H-pyrazole-3-carboxylates (2002) (11)
Ring Contractions of 4‐Oxoquinolizine‐3‐diazonium Tetrafluoroborates, by an Aza Wolff Rearrangement, to Alkyl Indolizine‐3‐carboxylates (2001) (11)
Aza-transfer reactions between some heterocyclic hydrazino compounds and benzenediazonium tetrafluoroborate or 3-diazoindazole (1976) (10)
Synthesis of (2S)-2-(Benzoylamino)-3-(heteroaryl)propyl Benzoates (2000) (10)
Transformations of N-heteroarylformamidines and N-heteroarylformamidine oximes new syntheses and transformations of oxazolo[5,4—c]pyridazines (1985) (10)
Transformations of isomeric naphthopyranones. The synthesis of substituted β-naphthyl-α,β-dehydro-α-amino acid derivatives (1992) (10)
Synthesis of 5-Substituted Ethyl 3-Oxo-2H-pyrazolo[4,3-c]pyridine-7-carboxy-lates (2004) (10)
Transformations of (Z)-2-benzoylamino-4-dimethylamino-2-oxo-3-butene and (E)-3-benzoylamino-4-cyano-2-oxo-3-butene into pyrimidine, pyrazole and isoxazole derivatives (2003) (10)
THE SYNTHESIS OF ETHYL 2-(2-CYANO-2-ETHOXYCARBONY ETHENYL)AMINO-3-DIMETHYLAMINOPROPENOATE THE SYNTHESIS OF SUBSTITUTED AMINOAZOLO-, AMINOAZINOPYRIMIDI NONES AND 2H-1-BENZOPYRAN-2-ONES (1998) (10)
Neighbouring group participation in formation of condensed azines. Formation of pyrazolo(3,4-b)pyrazines, isoxazolo(4,5-b)pyrazines and isothiazolo(5,4-b)pyridine (1982) (10)
Synthesis of spirolactones by 1,3-dipolar cycloadditions to methyl (S)-3-[(E)-cyanomethylidene]-2-oxotetrahydrofuran-5-carboxylate (2002) (10)
1,3-Dipolar cycloaddition of 2-diazopropane to azoloazines, derivatives of 10π-electron systems. The synthesis of pyrazolo/4,3-d/azolopyridazines and pyrazolo/3,4-d/azolopyridazines (1984) (10)
Transformation of 4-(1-dimethylaminoethylidene)-2-phenyl-5(4H)-oxazolone into methyl 2-benzoylamino-3-oxobutanoate. The synthesis of 1-substituted 4-benzoylamino-3-methyl-5(2H)-pyrazolones (1998) (10)
Cu(I)-catalyzed [3+2] Cycloadditions of tert-Butyl (S)-(3-Oxopent-4- yn-2-yl)carbamate to 1-Benzylidenepyrazole-3-one-derived Azomethine Imines (2014) (10)
Transformations of methyl 2-(2,2-disubstituted-ethenyl)amino-3-dimethylaminopropenoates. The synthesis of methyl 1-heteroaryl-1H-imidazole-4-carboxylates (1998) (10)
Cycloaddition reactions of the anhydro-4-hydroxythiazolium hydroxide system with dimethyl maleate and dimethyl fumarate: X-ray determination of the exo structure of the cycloadducts (1978) (10)
Bis-enaminone based parallel solution-phase synthesis of 1,4-dihydropyridine derivatives. (2009) (10)
Addition of 6-azidotetrazolo[1,5-b] pyridazine to acrylates (1971) (10)
The photo cycloaddition of alkenes to s‐triazolo[4,3‐b] and [2,3‐b]pyridazines (1973) (10)
Transformations of some substituted methylene heterocycles with some nucleophiles (1976) (10)
1,3-Dipolar cycloadditions of diazoalkanes to heteroaromatic systems: the synthesis of triazolo[4,3-b] [1,2]diazepine and cyclopropa[e]pyrazolo[4,3-c]azolo[1,5-a]pyridine derivatives (1989) (9)
Studies in the cycloproparene series: approaches to cyclopropaheteroarenes (1987) (9)
Carbon‐13 NMR investigation of the protonation and quaternization of azoloazines with a bridgehead nitrogen (1976) (9)
Synthesis of 3-(4-Oxo-4 H -quinolizinyl-3) and 3-(4-Oxo-4 H -pyridino[1,2- a ]pyrimidinyl-3) substituted lactic acid derivatives (2000) (9)
Regioselective 1,3-Dipolar Cycloadditions of (1Z)-1-(Arylmethylidene)-5,5-dimethyl-3-oxopyrazolidin-1-ium-2-ide Azomethine Imines to Acetylenic Dipolarophiles. (2001) (9)
The crystal structures of s-triazolo[4,3-b]pyridazine, s-triazolo[1,5-b]pyridazine and tetrazolo[1,5-b]pyridazine (1978) (9)
Catalytic hydrogenation of 3‐benzyloxycarbonylaminoazino[1,2‐x]‐azin‐4‐ones. A facile access to 3‐amino‐6,7,8,9‐tetrahydro‐4H‐pyrido[1,2‐a]pyridin‐4‐ones and 3‐Amino‐6,7,8,9‐tetrahydro‐4H‐azino[1,2‐x]pyrimidin‐4‐ones (2000) (9)
Synthesis of 4-(2-hydroxy-1-methyl-5-oxo-1H-imidazol-4(5H)-ylidene)-5-oxo-1-aryl-4,5-dihydro-1H-pyrrole-3-carboxylates, a new triazafulvalene system (2010) (9)
The synthesis and transformations of 9H-imidazo[1,2-b]pyrazolo[4,3-d]-pyridazine and 9H-pyrazolo[4,3-d]-s-triazolo[4,3-b]pyridazine derivatives (1988) (9)
Transformations of 1-(2-chloropyridyl-3)-4-ethoxycarbonyl-and 1-(2-chloropyridyl-3)-4-ethoxycarbonylmethyl thiosemicarbazides. Attempts to prepare pyrido[3,2-e]-1,2,4-thiadiazine (1988) (9)
Pyridazines. LXXXIV. Studies on borohydride reduction of pyridazine compounds (1976) (9)
Dialkyl Acetone-1,3-Dicarboxylates and their Mono- and bis(Dimethylamino)methylidene Derivatives in the Synthesis of Heterocyclic Systems (2010) (9)
Reactions of Methyl Ketones and (Hetero)arylcarboxamides with N,N-Dimethylacetamide Dimethyl Acetal. A Simple Metal-Free Synthesis of 2,4,6-Trisubstituted Pyridines (2015) (9)
Directed regiospecificity of 1,3-dipolar cycloaddition of 2-diazopropane to 4- and 5-substituted pyridazin-3(2H)-ones (1991) (9)
Synthesis of Alkyl 1-(Substituted Pyridin-2-yl)-1H-1,2,3-triazole-4-carboxylates by 'Ring Switching' Transformation of 4-Oxo-4H-pyridino[1,2-a]pyrimidine-3-diazonium Tetrafluoroborates (2000) (9)
(S)-N-Benzyl-3(6)-methylpiperazine-2,5-diones as chiral solvating agents for N-acylamino acid esters (2008) (9)
Reaction of Diethyl Carbonate with 4-Substituted Thiosemicarbazides (1961) (9)
Stereoselective Amination of 5‐Substituted γ‐Lactones and γ‐Lactams – A Convenient Route for the Preparation of 5‐Substituted (3S,5S)‐3‐Acetylaminotetrahydrofuran‐2‐ones and (3S,5S)‐3‐Acetylaminopyrrolidin‐2‐ones (1999) (9)
The mass spectra of some pyridazines, pyrido‐pyridazines and related compounds (1974) (9)
Synthesis and transformations of some N-substituted (1R,4S)-3-aminomethylidene-1,7,7-trimethylbicyclo [2.2.1]-heptan-2-ones (2006) (8)
Products of abnormal substitution of s-triazolo(1,5-a)pyrazines (1975) (8)
1,3‐dipolar cycloaddition of diazomethane to azolopyridazines. The synthesis of isomeric 7‐methyl‐7h‐ and 8‐methyl‐8h‐pyrazolo[4,3‐d]azolopyridazmes (1989) (8)
Transformations of methyl L‐(—)‐thiazolidine‐4‐carboxylate, 2‐amino‐2‐thiazoline and 2‐aminothiazole into thiazoloazines and azolothiazoles (1997) (8)
Reversal of the Stereochemical Course of 1‐Methyl‐1H‐indole Addition to Cinnamaldehyde with cis‐5‐Benzyl‐(2‐fluoromethyl)‐2,3‐dimethylimidazolidin‐4‐ones as Catalysts – a Puzzling ‘Fluorine Effect’ (2013) (8)
The synthesis of azahomotryptophane derivatives. The transformation of N‐trifluoroacetyl‐5‐bromo‐4‐oxonorvaline methyl ester into 4‐(imidazo[1,2‐a]azinyl‐3)‐4‐oxohomoalanine derivatives (1997) (8)
Functionalized Enamines in the Synthesis of Some Heterocyclic Compounds (1987) (8)
N,N-dimethylchloroformiminium chloride in the synthesis of heterocyclic compounds: the synthesis of N-heteroarylformamidine hydrochlorides, oxazolo/5,4-d/pyrimidines, fused imidazoles and other systems (1984) (8)
The reaction of 2-ethoxycarbonyl-3-isothiocyanatopyridine with α-amino acids. The synthesis of 3-substituted 2-thiooxo-2,3-dihydropyrido[3,2-d]pyrimidin-4(3H)-ones (1990) (8)
Diversity-oriented synthesis of 1-substituted 4-aryl-6-oxo-1,6-dihydropyridine-3-carboxamides. (2012) (8)
1,3-Dipolar cycloaddition of 2-diazopropane to pyrimido[1,2-b]pyridazin-4-one derivatives. The synthesis of pyrazolo[4,3-d]pyrimido[1,2-b]pyridazin-4(10H)-ones, derivatives of a novel heterocyclic system (1985) (8)
A noteworthy improvement of the 3‐diazo‐4‐oxo‐3,4‐dihydroquinoline photosynthesis of indole‐3‐carboxamides (1977) (8)
Pyridazines. LIX. An unusual reaction of azidoazolopyridazines with diethylamine (1973) (8)
A Simple One‐Step Synthesis of Substituted Methyl 2‐Benzoylamino‐3‐arylaminopropenoates, Intermediates in the Preparation of Substituted Arylaminoalanines (1989) (8)
1, 3‐dipolar cycloaddition of diazomethane to azolopyridazines. The synthesis of 8‐methyl‐8H‐ and 9‐methyl‐9H‐pyrazolo[3, 4‐d]‐s‐triazolo[4, 3‐b]pyridazine and 1‐methyl‐1H‐ and 2‐methyl‐2H‐imidazo[1, 2‐b]pyrazolo[3, 4‐b]pyridazine derivatives (1989) (8)
Synthesis and Reactivity of (Z)-3-Benzoylamino-4-dimethylamino-2-oxo-3-butene. Preparation of 1-Aryl- and 1-Heteroaryl-substituted 4-Benzoyl-amino-5-methyl-1H-pyrazoles (2002) (8)
A novel synthesis and transformations of 1H-pyrazino/2,3-e/1,3,4-thiadiazine derivatives (1985) (8)
Isolation of methyl (RS)‐1‐tert‐butoxycarbonyl‐3‐cyanomethyl‐1,2‐dihydro‐2‐oxo‐5H‐pyrrole‐5‐carboxylate, the key‐intermediate in base‐catalyzed formation of racemic products by 1,3‐dipolar cycloadditions to methyl (S)‐1‐tert‐butoxycarbonyl‐3‐[(E)‐cyanomethylidene]‐2‐pyrrolidinone‐5‐carboxylate (2002) (8)
Transformations of Heterocyclic Amidines and Amide Oximes: Synthesis of s-Triazolo[1′,5′:1,6]pyrimido[4,5-c]pyridazines, s-Triazolo[1′,5′:2,3]pyridazino[4,5-c]quinoline and 7H-2,3,4,6, 7-Pentaazabenz[d,e]anthracene, Derivatives of Novel Heterocyclic Systems (1986) (8)
1,3-Dipolar cycle-addition of 2-diazoalkanes to pyridazin-3(2H)-one derivatives. The formation of 3H-pyrazolo[3,4-d]pyridazin-4(5H)-one and 3H-pyrazolo[3,4-d]pyridazin-7(6H)-one derivatives (1991) (8)
SYNTHESIS OF SOME 1,2,4-THIADIAZOLO[2,3-a] PYRIDINE DERIVATIVES AND ITS AZA ANALOGUES (1975) (8)
Alkyl 2-Substituted 3-(Dimethylamino)propenoates and Related Compounds - Versatile Reagents in Heterocyclic Chemistry (2000) (7)
Selective Deoxygenation of N-Oxides and Reduction of Nitro Compounds by Molybdenum(III) Species (1980) (7)
Transformations of heterocyclic N-oxides into derivatives of α-heteroaryl substituted α-amino acids and dipeptides (1987) (7)
AN IMPROVED SYNTHESIS OF s-TRIAZOLO[1,5-x]AZINES (1978) (7)
A One-Step Transformation of (S)-1-Benzoyl-3[(E)-dimethylaminomethylidene]-5-methoxycarbonylpyrrolidin-2-one into Quinolizinyl- and 2H-2-Pyranonyl-substituted Alanine Derivatives (1999) (7)
Transformation of 1,5-Diphenylpentane-1,3,5-trione. The Synthesis of Substituted (4H)-Pyranones, Pyridin-4(1H)-ones and 4H-Pyrano[3,2-c]pyridin-4-ones (2008) (7)
Synthesis and Transformations of Alkyl 1,5-Bis(dimethylamino)-3-oxopenta-1,4-diene-2,4-dicarboxylates. A Simple Synthesis of Dialkyl 1-Substituted 4-Oxo-1,4-dihydropyridine-3,5-dicarboxy-lates (2000) (7)
Syntheses of some azinylhydroxylamines (1979) (7)
Synthesis of 1,5-disubstituted-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridine-7-carboxamides (2015) (7)
Study on the preparation of heteroaryl substituted enamines. A simple synthesis of heteroaryl substituted acetaldoximes from enamines (1996) (7)
UTILITY OF HETEROCYCLIC DIAZO COMPOUNDS IN ORGANIC SYNTHESIS (1976) (7)
Mass spectrometry of condensed N‐heterocycles: II—A novel ortho effect in the electron impact induced fragmentation of some C‐(2‐nitrophenyl)‐azoles and ‐azoloazines (1980) (7)
Synthesis of 8-Hydroxyimidazo[1,2-a]pyridine-2-carboxylic Acid and Its Derivatives (2008) (7)
Synthesis of Unsaturated Tryprostatin B Analogues and Determination of Their Enantiomeric Purity with (S)-1-Benzyl-6-methylpiperazine-2,5-dione (2008) (7)
Transformations of Alkyl 2-(2,2-Disubstituted-ethenyl)amino-3-dimethylaminoprop-2-enoates: Synthesis of Alkyl 3,4-Disubstituted- and Alkyl 1-Acyl-3,4-disubstituted Pyrrole-2-carboxylates (1999) (7)
Reactions of methyl (E,Z)‐2‐(2‐benzoyl‐2‐ethoxycarbonyl‐1‐ethenyl)‐amino‐3‐dimethylaminopropenoate with heteroarylhydrazines. 2‐(2‐Benzoyl‐2‐ethoxycarbonyl‐1‐ethenyl)amino‐3‐heteroarylhydra‐zonopropanoates and 1‐heteroaryl‐4‐ethoxycarbonyl‐3‐phenylpyrazoles (1997) (7)
Syntheses of some azolopyridopyrimidines (1983) (7)
An unequivocal synthesis of some substituted 1,2,4-triazolo[1,5-a]pyrimidines (1987) (7)
Selective Synthesis and Cycloaddition Reactions of New Azomethine Imines Containing a 1,2,4‐Triazine Ring (2005) (7)
Synthesis and Transformations of Ethyl (2E)-3-N,N-Dimethylamino-2-(5-ethoxy-1-phenyl-1H-pyrazol-3-yl)propenoate (2005) (7)
Synthesis and transformations of new dihydro-β-campholenolactone derivatives (2006) (7)
Syntheses and Reactivity of 1,2,4-Thiazolo[2,3-a]pyridines and Some Related Systems (1978) (7)
A NOVEL METHOD FOR THE PREPARATION OF SUBSTITUTED 5-AMINO-1,2,3,4-THIATRIAZOLES BY AZA TRANSFER REACTION (1978) (7)
Carbon-13 NMR investigation of the structure of hydroxy-azoloazines with a bridgehead nitrogen (1977) (7)
A Simple Metal-free Synthesis of 2,4,5-Trisubstituted Pyridines and Pyridine N-Oxides by [2+2] Cycloaddition of Enaminones to Propyne Iminium Salts (2014) (7)
Selective Reduction of Heterocyclic Azides and Hydrazino Compounds to Amines by Molybdenum(III) Species (1980) (7)
Reduction of Heterocyclic Azides into Amines with Titanium(III) Chloride (2002) (7)
About the structure of N-hetaryl substituted formamidoximes (1974) (7)
AZA-transfer reactions a novel method for the conversion of monosubstituted hydrazino compounds into hydrocarbons (1978) (6)
Synthesis and structural elucidation of novel camphor-derived thioureas. (2012) (6)
Ring transformations of some 4-aminopteridine 3-oxides and derivatives (1983) (6)
The Synthesis of Stable 8-Alkylidene-9H-pyrazolo[4,3-d]tetrazolo [1,5-b]pyridazine Azomethine Imines and Their Transformation into 9,10-Dihydro-8H-tetrazolo[1',5' :1,6]-pyridazino [4,5-c] [1,2] diazepines, Derivatives of a Novel Heterocyclic System (1990) (6)
Alkyl 2-Substituted 3-(Dimethylamino)propenoates and Related Compounds — Versatile Reagents in Heterocyclic Chemistry (2000) (6)
A general synthesis of alkyl 6-substituted-pyrazolo-[3,2-c] -s-triazolo-7-carboxylates (1979) (6)
Ring Contractions of 3-Azido-4H-quinolizin-4-ones and 3-Azido-4H-azino[1,2-x]pyrimidin-4-ones : a Novel Approach to 3-Aminoindolizines and their Aza Analogues (2008) (6)
Synthesis and Transformations of Ethyl (Z)-2-(2,3-dihydro-1,3-dioxo-1H-isoindol-2-yl)-3-(dimethylamino)propenoate (2001) (6)
Formation of 3-Substituted 2-Thio-4-oxo-hexahydro-1,3-diazines and 2-Substituted Imino-6-oxo-1,3-thiazanes from 1-Substituted 3-Carboxyethylthioureas and Interconversion of Both Cyclic Systems (1964) (6)
Synthesis of 2-(3-(3,5-bis(trifluoromethyl)phenyl)thioureido)-3-((dimethylamino)methyl)camphor organocatalysts. (2012) (6)
Methyl 2‐benzoylamino‐3‐dimethylamonopropenoate in the synthesis of heterocyclic systems. A simple synthesis of amino derivatives of isomeric naphthopyranones and naphthodipyranones (1992) (6)
Synthesis of 3-(α- and β-d-arabinofuranosyl)-6-chloro-1,2,4-triazolo[4,3-b]pyridazine (2003) (6)
Amino acids in the synthesis of heterocyclic systems. Synthesis of γ‐(5‐(1,2,4‐Triazinylidene))‐α,β‐dehydro‐α‐amino acid derivatives and 6H‐pyrido[1,2‐d][1,2,4]triazin‐6‐ones (1995) (6)
Synthesis of pyridazine derivatives. XXVII. The formation of 4H-pyridazino[6,1-c]-as-triazine and 1H-lmidazo(1′,2′:2,3)pyridazino[6,1-c]-as-triazine ring system (1969) (6)
Synthesis of imdazo/1,2-b/-s-triazolo/3′,4′-f/pyridazine a new tricyclic azaheterocycle (1966) (6)
Pyridazines. LIII. Hydrazinolysis of some s-Triazolo[4,3-b]pyridazines (1972) (6)
The Synthesis of Aplysinopsins, Meridianines, and Related Compounds (2006) (6)
Pyridazines. L. Methylations and methyl group migrations of some imidazo[1,2-b]pyridazines (1972) (6)
The synthesis and transformations of 2H‐naphtho‐[1,2‐b]pyran‐2‐one derivatives. Naphtho[2′,1′:5,6]‐pyrano[3,4‐d][1,3]oxazines and naphtho[1′,2′:5,6]pyrano[3,4‐d]‐pyrimidines, derivatives of two new heterocyclic systems (1990) (6)
A Synthesis of 2-Oxo-2H-pyrano-[2,3-f]quinoline Derivatives (1994) (6)
Stereoselective [4+2] cycloadditions of tetrazines to 3-oxo- and 3-arylimino-4′-methylenedihydro-3′H-spiro[bicyclo[2.2.1]heptane-2,2′-furans] (2007) (6)
Conversion of Pyrido[2,3-d]pyrimidines into Some Other Heterocycles (1978) (6)
Synthesis of spiro[bicyclo[2.2.1]heptane-2,2′-furan]-3-amines via stereoselective cycloadditions of trimethylenemethane to (1S,3EZ,4R)-3-arylimino-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ones (2007) (6)
[2+2] Cycloadditions of electron-poor acetylenes to endocyclic enaminones: ring-expansion reactions (2015) (6)
Formation of pyrimido[1,2-b]pyridazines, a new bicyclic triazaheterocyclic system (1968) (6)
Pyridazines. XLVI. Ring Opening of Some Azolo and Azino Pyridazines (1971) (6)
New Developments in Heterocyclic Tautomerism (2016) (6)
The synthesis of derivatives of new tetracyclic heterocyclic systems pyrazolo‐bis‐azolopyridazines (1989) (6)
TheSemmler-Wolff aromatization andSchmidt reaction applied to some pyrido[2′,3′:3,4]pyrazolo[5,1-c][1,2,4]benzotriazines (1988) (6)
3-(Dimethylamino)propenoate-based Regioselective Synthesis of 1,4-Disubstituted 5-Hydroxy-1H-pyrazoles (2006) (6)
Pyridazines. LVIII. Oxidative transformations of pyridazinyl sulfides (1973) (6)
Unexpected cleavage of the N–N bond in the reactions of 3-pyrazolidinone-1-azomethine imines with HCN (2007) (6)
The synthesis and transformations of some 3-thiocarbamoylthiazolidines† (1997) (6)
The synthesis of 3-[(dimethylamino)(2-phenyl-5-oxo-2-oxazolinyl-idene-4)methyl]imidazo[1,2-x]azines and related compounds, intermediates in the formation of azaaplysinopsin derivatives (1998) (6)
Synthesis of pyridines with an amino acid residue by [2+2] cycloadditions of electron-poor acetylenes on enaminone systems derived from N-Boc protected amino acids (2017) (6)
Synthesis and structure of novel (S)-1,6-dialkylpiperazine-2,5-diones and (3S,6S)-1,3,6-trialkylpiperazine-2,5-diones (2011) (6)
CONTRIBUTION TO THE STRUCTURE OF HETEROCYCLIC COMPOUNDS WITH THIOAMIDE GROUPS. PYRIMIDINETHIOLS AND RELATED COMPOUNDS. (1964) (5)
Synthesis of thioaplysinopsin analogs derived from 5-dimethylaminomethylidene-2-thioxo-1,3-thiazol-4-ones (2007) (5)
With Ammonia and Amines (2002) (5)
Transformations of Dialkyl Acetone-1,3-dicarboxylates via Their Dimethylaminomethylidene Derivatives Into 1-substituted 4-ethoxycarbonyl-5-(ethoxycarbonylmethyl)pyrazoles, 7-amino-2-ethoxycarbonyl-1H, 2H-pyrazolo[2,3-c]pyrimidin-5-one, 4-hydroxypyridin-2(1H)-ones and 6-substituted 3-benzoylamino-2,5 (2008) (5)
ETHYL 2-(2-ACETYL-2-ETHOXYCARBONYL-1-ETHENYL)AMINO-3-DIMETHYLAMINOPROPENOATE IN THE SYNTHESIS OF HETEROCYCLIC SYSTEMS. THE SYNTHESIS OF SUBSTITUTED 3- AMINOAZOLO- AND -AZINOPYRIMIDINONES, PYRIDOPYRIDINONES AND PYRANONES (1999) (5)
Synthesis of 6-Alkyl-7-oxo-4,5,6,7-tetrahydropyrazolo[1,5-c]pyrimidine-3-carboxamides (2014) (5)
Regio- and Stereoselective Cycloadditions and Further Transformations of Azomethine Imine Derivatives of Fused [1,2,4]Triazines (2005) (5)
Rearrangements of 5-acetyl-3-benzoylamino-6-(2-dimethylamino-1-ethenyl)-2H-pyran-2-one and 3-benzoylamino-6-(2-dimethylamino-1-ethenyl)-5-ethoxycarbonyl-2H-pyran-2-one into 1-aminopyridine, pyrano[2,3-b]pyridine and isoxazole derivatives (1996) (5)
Synthesis of 6-Hydroxyfulvenes. I. Acid-catalyzed Rearrangements (1971) (5)
3-Bromoimidazo[1,2-b]pyridazine-Bromine and 3-Bromo-6-chloroimidazo [1,2-b]pyridazine-Bromine Complexes; New Brominating Agents for Organic Compounds (1981) (5)
Synthesis and Transformation of Methyl 2‐(6‐Hydroxy‐2‐phenylpyrimidin‐4‐yl)acetate: Simple Preparation of Pyrimidines with Heterocyclic Substituents (2007) (5)
Synthesis and Transformations of Ethyl 3-Formyl-1H-indole-2-carboxylate. Preparation of Aplysinopsin and β-Carboline Thiohydantoin Analogues (2006) (5)
Three substituted 3-amino-2-benzoylaminopropenoic acid derivatives (1994) (5)
Synthesis of Dimethyl 1-(Hetero)aryl-4-oxo-1,4-dihydropyridazine- 3,5-dicarboxylates from Dimethyl 3-Oxopentane-1,5-dioates (2008) (5)
Reactions of alkyl (z)‐2‐[(E)‐2‐ethoxycarbonyl‐2‐(2‐pyridinyl)‐ethenyl]amino‐3‐dimethylaminopropenoates with C‐ and N‐nucleophiles. the synthesis of fused pyranones, pyridinones and pyrimidinones (2001) (5)
Synthesis and transformations of some pyrido[2,3-d]pyrimidines (1987) (5)
4-[3-Dimethylamino-1-(2-dimethylaminovinyl]prop-2-enylidene]-2-phenyl-1,3-oxazol-5(4H)-one and 5-[3-Dimethylamino-1-(2-dimethylaminovinyl)prop-2-enylidene]-3-methyl-2-thioxo-1,3-thiazolidin-4-one in the Synthesis of 1,4-Dihydropyridine Derivatives (2002) (5)
Synthesis and structural characterization of novel camphor-derived amines. (2012) (5)
The synthesis of 5-substituted 3-benzoylamino-6-(2-substituted amino-1-ethenyl)-2H-pyran-2-ones and their transformations into 2H-pyrano[3,2-c]pyridine derivatives† (1996) (5)
Transformations of 1-azinyl-4-ethoxycarbonyl thiosemicarbazides. The synthesis of 3-ethoxycarbonylamino-s-triazolo[4,3-x]azines (1988) (5)
THE TRANSFORMATIONS OF 4-HETEROARYLAMINOMETHYLENE-5(4H)-OXAZOLONES INTO DEHYDROPEPTIDE DERIVATIVES (1995) (5)
Transformations of 3-aminopyridazines. Synthesis of 4-oxo-4H-pyrimido[1,2-b]pyridazine and 1-(substituted pyridazin-3-yl)-1H-1,2,3-triazole derivatives (2002) (5)
The Structure of Aryldialkyltriazene N-Oxides (1983) (5)
REACTION OF REL-(4R, 5R)-4-BENZOYLAMINO-5-PHENYL-3-PYRAZOLIDINONE WITH ALIPHATIC 1,3-DICARBONYL COMPOUNDS. A 'RING SWITCH' SYNTHESIS OF REL-(2R, 3R)-3 -PHENYL-3-(PYRAZOLYL-1)ALANINE ESTERS (1999) (5)
A Synthesis and Transformations of Alkyl 2-[2-Cyano-2-(2-pyridinyl)ethenyl]amino-3-dimethylaminopropenoates. A One-Pot Synthesis of Pyrrolo[3,2-d]pyrimidin-4-ones (2000) (4)
THE SYNTHESIS OF ETHYL (Z)-2-2,2-BIS(METHOXYCARBONYL)-ETHENYLAMINO-3-DIMETHYLAMINOPROPENOATE AND ITS APPLICATION TO THE SYNTHESIS OF FUSED AMINOPYRIMI DINONES AND AMINOPYRANONES (1998) (4)
1,3-Dipolar cycloaddition of 2-diazopropane to coumarin. The synthesis of derivatives of [1]benzopyrano[4,3-c]pyrazol-4(3H)-one and [1]benzopyrano[3,4-c]pyrazol-4(1H)-one (1987) (4)
Application of organic azides in the synthesis of heterocyclic systems (2020) (4)
A New Approach to 5H-Pyrrolo-[3,2-d]pyrimidines (9-Deazapurines) from 3-Aminopyrrole-2-carboxylates (1999) (4)
Attempts to prepare some 3‐substituted azolo[1,2‐x]azines, intermediates in the synthesis of azaaplysinopsin derivatives (1999) (4)
Transformations of ethyl 2-amino-4-(2-ethoxy-2-oxoethyl)-thioazole-5-carboxylate into 5-substituted 2-amino-4-oxo-4,5-dihydrothiazolo〔5,4-c〕pyridine-7-carboxylates (2009) (4)
Synthesis of Pyridazine Derivatives. XII. Friedel—Crafts Reaction with 3,6-Dichloropyridazine (1966) (4)
Cross-Coupling Reactions at Position 5 (2002) (4)
Transformations of dimethyl acetone-1,3-dicarboxylate. The synthesis of (4-oxo-4H-pyrido(1,2-a)pyrimidin-3-yl)thiazole-5- carboxylates (2009) (4)
Synthesis of (S)-3-heteroaryl-2-hydroxy-l-propyl benzoates by ‘ring switching’ methodology (2001) (4)
Parallel Synthesis of 2-Substituted 6-(5-Oxo-1-phenylpyrrolidin-3-yl)pyrimidine-5-carboxamides (2012) (4)
Reactions of Alkyl (Z)-2-[(E)-2-Cyano-2-(2-pyridinyl)ethenyl]amino-3-dimethylaminopropenoates with C- and N-Nucleophiles. The Synthesis of Fused 2H,5H-Pyran-2,5-diones, 4H-Pyrimidin-4-ones, and 1-Heteroaryl-1H-imidazole-4-carboxylates (2001) (4)
Some transformations of 3‐amino‐4‐alkoxycarbonyl‐6‐hydroxy‐2H‐1‐benzopyran‐2‐ones. The synthesis of [1] benzopyrano[3,4‐d]‐[1,3]oxazine and [1] benzopyrano[3,4‐d]pyrimidine derivatives (1990) (4)
Syntheses and transformations of 4-amino-2-methylthio- and 4-amino-2-methoxypyrimidine-5-carboxamide oximes (1985) (4)
AN ATTEMPT TO CONVERT HETEROCYCLIC AMINES INTO AZIDES BY AN AZA‐TRANSFER REACTION UNDER PHASE‐TRANSFER REACTION CONDITIONS (1979) (4)
The synthesis of -heteroarylamino-a,-dehydro-a-amino acid derivatives via thiazolones (1994) (4)
Effect of vinylene and 1,4-phenylene spacers on efficiency of the ground-state intramolecular charge-transfer in enlarged 4-dimethylamino-1-methylpyridinium cations (2009) (4)
Pyridazines. liv. synthesis of s-triazolo(2,3-b)pyridazines, a novel heterocyclic system (1972) (4)
Formation of [2 + 2] cycloadducts from heterocyclic formamidines and phenyl isocyanate (1980) (4)
2-Amino-3-(5-methyl-1,2,4-oxadiazol-3-yl)pyridine (1979) (4)
1,3-Dipolar cycloadditions of diazoalkanes to pyridazine derivatives. Thermal 1,5-sigmatropic rearrangement of methyl groups in 3,3-dimethyl-3H-pyrazolo[3,4-d]pyridazine derivatives (1991) (4)
Photolysis of 6-azido-azolopyridazines (1971) (4)
Reactions of Heterocyclic N-Oxides. The Synthesis of a-Heteroaryl-a-amino Acid Derivatives and Dipeptides (1992) (4)
1,3-dipolar cycloadditions of 2-diazobutane, diazophenylmethane and 1-diazo-1-phenylethane to azolopyridazines. The isolation of some primary and rearranged cycloadducts and their transformations into substituted pyrazolo[4,3-d]azolopyridazines (1990) (4)
The synthesis of furo/2,3-c/pyridazine, a novel heterocyclic system (1983) (4)
Inactivation studies of cathepsin D with diazo compounds. (1977) (3)
The synthesis and transformations of 2‐[2‐ethoxycarbonyl‐2‐(2‐pyridinyl)ethenyl]amino‐3‐dimethylaminopropenoates. the synthesis of substituted β‐amino‐α,β‐didehydro‐a‐amino acid derivatives (2001) (3)
Preparation of azolopyridazinecarboxylic acids (2009) (3)
Amino acids in the synthesis of heterocyclic compounds. Transformations of thiazolones into imidazole derivatives (1992) (3)
A NEW METHOD FOR THE PREPARATION OF SUBSTITUTED 2-PYRIMIDINYL- AND S-TRIAZINYLFORMAMIDE OXIMES. FORMYLATION OF HETEROCYCLIC AMINES WITH TRISFORMAMINOMETHANE (1981) (3)
Transformations of Methyl 2-Benzoylamino-2-oxobutanoate. The Synthesis of Oxazolo[4,5-c]quinoline and 1-Substituted 1H-Imidazole-4-carboxylate Derivatives (2003) (3)
APPLICATIONS OF MAGNETIC CIRCULAR DICHROISM: A HAMMETT-LIKE EQUATION FOR STRUCTURAL WORK. DETERMINATION OF PROTONATION SITES IN AZAINDOLIZINES (1985) (3)
TRANSFORMATIONS OF DIETHYL 2-[(DIMETHYLAMINO)METHYLENE]-3-OXOPENTANEDIOATE. A SIMPLE SYNTHESIS OF SUBSTITUTED 2-AMINO-5-OXO-5,6-DIHYDROPYRIDO[4,3-d]PYRIMIDINE-8-CARBOXYLATES (2009) (3)
REDUCTION OF HETEROCYCLIC DIAZO COMPOUNDS WITH TITANIUM(III) AND IRON(II) SALTS (1979) (3)
A SIMPLE STEREOSELECTIVE ONE POT CONVERSION OF COMPOUNDS WITH A DIMETHYLAMINOMETHYLENE GROUP INTO ENOL ESTERS (2001) (3)
7-Hydrazino- and 7-Azido-3-phenyl-4H-pyridazino[6,1-c]-1,2,4-triazine (1970) (3)
Pyridazines. LXX. Reactions of azidoazolopyridazines with unsaturated compounds (1975) (3)
ENAMINO ESTERS IN THE SYNTHESIS OF HETEROCYCLIC SYSTEMS. TRANSFORMATION OF DIMETHYL ACETONE-1,3-DICARBOXYLATE INTO POLYSUBSTITUTED 1,6-NAPHTHYRIDINE-8-CARBOXYLATES (Dedicated to Dr. Albert Padwa on his 75th birthday) (2012) (3)
Reactions of Quinolizine- and Pyridino[1,2–a]pyrimidine-3-diazonium Tetrafluoroborates with Aliphatic Amines (2004) (3)
[2 + 2] Cycloaddition of Electron‐Poor Acetylenes to (E)‐3‐Dimethylamino‐1‐heteroaryl‐prop‐2‐en‐1‐ones: Synthesis of Highly Functionalized 1‐Heteroaroyl‐1,3‐butadienes. (2010) (3)
Thermal decomposition of dihydroergocristine methanesulphonate (1983) (3)
The synthesis of s-triazolo/1,5-b/pyridazine 3-oxide derivatives (1975) (3)
1,3-Dipolar cycloadditions of 5-(4-methoxyphenyl)- and 5-(1H-indol-3-yl)-substituted (1Z,4R*,5R*)-1-(arylmethylidene)-4-benzamido-3-oxopyrazolidin-1-ium-2-ides to olefinic dipolarophiles (2009) (3)
6‐Chloro‐4‐methyl‐1,2,3‐benzothiadiazole (1979) (3)
The Synthesis and Transformations of Some 3-Thiocarbamoylthiazolidines. (1997) (3)
A NEW APPROACH FOR THE SYNTHESIS OF FUSED IMIDAZOLES: THE SYNTHESIS OF 3-ACYL-SUBSTITUTED IMIDAZO(1,2-X)AZINES (1984) (3)
Formation of benzocyclobutenes from substituted oxocycloocta-2,8-diene-1,2-dicarboxylates (2015) (3)
SOME NEW SYNTHETIC APPROACHES FOR THE PREPARATION OF PTERIDINE 3-OXIDES AND PTERIDINES (1981) (3)
Synthesis of Novel Heterocyclic Thiazolo Derivatives (1966) (3)
Synthesis of methyl 2-[(benzyloxycarbonyl)amino]-3-cyanopropenoate and its transformations into derivatives of pyrrole, 2,5-dioxoimidazolidine, 1H-pyrazole, and 4,6-diaminopyridazine (2006) (3)
Reduction of pyridazine compounds with sodium borohydride (1975) (3)
A Simple Synthesis of Polyfunctionalized 4‐Aminopyrazolidin‐3‐ones as ‘Aza‐deoxa’ Analogs of D‐Cycloserine (2014) (3)
A Simple Synthesis of Aplysinopsin Analogues by Dimethylamine Substitution in N,N‐(Dimethylamino)methylidene Derivatives of Five‐Membered Heterocycles. (2002) (3)
Ring Contractions of 4‐Oxoquinolizine‐3‐diazonium Tetrafluoroborates, by an Aza Wolff Rearrangement, to Alkyl Indolizine‐3‐carboxylates. (2002) (3)
Synthesis of 4‐(2‐Hydroxy‐1‐methyl‐5‐oxo‐1H‐imidazol‐4 (5H)‐ylidene)‐5‐oxo‐1‐aryl‐4,5‐dihydro‐1H‐pyrrole‐3‐carboxylates, a New Triazafulvalene System. (2010) (3)
A Novel Synthesis of Tetrahydropyrazolo[1,5-c]pyrimidine-2,7(1H,3H)-diones (2013) (3)
Synthesis of novel C2-symmetric 1,3-bis{(1S,2R,3S,4R)-1,7,7-trimethyl-3′H-spiro[bicyclo[2.2.1]heptane-2,2′-furan]-3-yl}benzoimidazolium tetrafluoroborates (2008) (3)
Synthesis of novel camphor-derived bifunctional thiourea organocatalysts. (2015) (3)
Synthesis of 3-(2-Oxo-2H-pyranyl-3)Substituted Lactic Acid Derivatives (2000) (3)
Microwave-Assisted Direct Amidation of Ethyl 1-Phenyl-5-hydroxy-1H-pyrazole-4-carboxylate (2015) (3)
Transformations of 2,4,5-trisubstituted pyrimidines. The syntheses and transformations of pyrimido[4,5-d]pyrimidine, 1,2,4-triazolo[4,3-a]˚pyrimidine, tetrazolo[1,5-a]pyrimidine, 1,2,4-triazolo[3,4-b]purine and tetrazolo[5,1-b]purine derivatives (1986) (3)
Novel approach to the synthesis of 3-acyl substituted indolizines. The synthesis of 3-(indolizinyl-2)alanine and 4-(indolizinyl-3) homoalanine derivatives (1996) (3)
Azolo‐ and Azinopyridazines and some Oxa and Thia Analogs (2008) (2)
Parallel Synthesis of 1-Substituted5-(5-Oxopyrrolidin-3-yl)-1H-pyrazole-4-carboxamides (2011) (2)
Chlorodemethylation of Some Azoloazines1 (1976) (2)
Hydrolysis of N,N-Dimethylenamines. Stereospecific synthesis of Their Enol and Enol Ester Derivatives (2003) (2)
Synthesis from Isoxazoles (2002) (2)
A simple synthesis of dimethyl 2-[(Z)-3-amino-1-oxo-1-(substituted)but-2-en-2-yl]fumarates: potential intermediates in the synthesis of polysubstituted five- and six-membered heterocycles (2016) (2)
Diastereoselective Synthesisof Dimethyl (4R*,4a′R*,7a′R*)-1-Aryl-6′-benzoyl-4a′-methyl-5-oxo-1,4′,4a′,5,5′,6′-hexahydrospiro[pyrazole-4,7′-pyrrolo[3,4-c]pyridazine]-3′,7a′(1′Η)-dicarboxylates (2009) (2)
1,3-Dipolar Cycloadditions of (1Z,4R*,5R*)-4-Benzamido-3-oxo- 5-phenylpyrazolidin-1-ium-2-ides to Ethyl Propiolate (2008) (2)
Structure of the 1:1 adduct of 2‐phenyl‐4‐(4,6‐dimethyl‐2‐pyrimidinyl)aminomethylene‐5(4H)‐oxazolone and acetic acid (1991) (2)
HETEROCYCLES. CXXXIII. INDAZOLES IN ORGANIC SYNTHESIS. FORMATION OF SOME FUSED HETEROCYCLES (1976) (2)
New Synthetic Approach for Azolopurines and Analogs. (1982) (2)
Enaminone-Based Synthesis of (S)-3-(Pyrazolyl)alanines from l-Aspartic Acid (2006) (2)
HETEROCYCLES. CXCVIII. HETEROACYL AZIDES AS ACYLATING AGENTS FOR AROMATIC OR HETEROAROMATIC AMINES (1980) (2)
The synthesis of some dialkyl 4-(3-substituted amino)phenyl-1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylates (1997) (2)
Synthesis and transformations of methyl (Z)-2-((tert- butoxycarbonyl)amino)-3-(dimethylamino)propenoate (2001) (2)
Synthesis of 2-Unsubstituted 2,3,5,6,7,8-Hexahydropyrazolo[4,3-d][1,2]diazepinone-8-carboxylates. (2007) (2)
Bromination of a-Ergocryptine and Other Ergot Alkaloids with 3-Bromo-6-chloro-2-methylimidazo[1,2-b]pyrimidazine-Bromine Complex as a New Brominating Agent (1981) (2)
The Crystal Structure of Lacidipine Phototransformation Product (2008) (2)
Synthesis from Pyrroles (2002) (2)
Alkyl 3‐(Dimethylamino)propenoates and Related Compounds as Useful Building Blocks in the Synthesis of Heterocyclic Systems: Approaches Towards the Synthesis of Natural Products and Their Close Analogues (2002) (2)
A Simple Synthesis of 1-Substituted Diethyl Pyrrole-3,4-dicarboxylates (2009) (2)
Regiospecific [2 + 2] Cycloadditions of Electron-Poor Acetylenes to (Z)-2-Acylamino-3-dimethylaminopropenoates: Synthesis of Highly Functionalized Buta-1,3-dienes. (2008) (2)
Thiazolones in the synthesis of α,β-dehydro-α-amino acids and their further transformations into heterocyclic systems (1993) (2)
The Synthesis of Azatryptophane Derivatives. (1995) (2)
Synthesis of Tetrahydropyrazolo[1,5-c]pyrimidine-2,7(1H,3H)-diones (2013) (2)
Transformations of Methyl 2‐[(E)‐2‐(Dimethylamino)‐1‐(methoxycarbonyl)ethenyl]‐1‐methyl‐1H‐indole‐3‐carboxylate (2006) (2)
Intramolecular thermal cyclizations of methyl (E)-3-arylamino-2-benzoylaminobut-2-enoates (2004) (2)
Transformations of some 6‐ and 7‐substituted 1,2,3‐benzothiadiazoles (1980) (2)
Pyridazines. LXV. Reactions of some I-phenacylazolopyridazinium halides with 2,3-diphenylcyclopropenone, -thione, or hydrazine (1974) (2)
Synthesis and transformation of N,N-dimethylaminomethylidene derivatives of indolylglycines and some other dipeptides (2007) (2)
Synthesis of N-Substituted 3-Aminomethylidenetetramic Acids. (2006) (2)
Synthesis of 3-(2-aminoethyl)-5-hydroxy-1H-pyrazole derivatives (2011) (2)
Transformations of Phenylhydrazones of Dialkyl 2-Oxo-propane-1,3-dicarboxylate and of Ethyl Acetoacetate in Concentrated Sulfuric Acid (2005) (2)
Three substituted 3‐aminopropenoates (1994) (2)
The Synthesis of Methyl 2-(Benzyloxycarbonyl)amino-3-dimethylaminopropenoate. The Synthesis of Trisubstituted Pyrroles, 3-Amino-2H-pyran-2-ones, Fused 2H-Pyran-2-ones, and 4H-Pyridin-4-ones. (1999) (2)
STRUCTURAL ASSIGNMENT OF CYCLIC PRODUCTS FROM 1,2-DICARBOXYLIC ANHYDRIDES AND HYDRAZINE. S,S-DIMETHYL SULFOXIMIDES (1973) (2)
About the structure of two isomeric pyrazoloquinolines (1976) (2)
Structure of 6-chloro-9,9-dimethyl-9H-imidazolo[1,2-b]pyrazolo[4,3-d]pyridazine (1987) (2)
1,3-Dipolar cycloaddition of 2-diazopropane to imidazo[1,2-b]pyridazine derivatives. The synthesis of imidazo[1,2-b]pyrazolo[4,3-d]pyridazines derivatives of a novel heterocyclic system (1984) (2)
The effect of substituents on the chiral solvating properties of (S)-1,6-dialkylpiperazine-2,5-diones (2011) (2)
6‐Hydroxy‐s‐triazolo[4,3‐b]pyridazine: X‐ray analyses at 90 and 293 K (1977) (2)
A Simple Stereoselective Synthesis of Aplysinopsin Analogues. (2001) (2)
Transformations of Enaminones. A Simple One-Pot Synthesis of Imidazolone Derivatives. (2012) (2)
A Simple Synthesis of 4‐(2‐Aminoethyl)‐5‐hydroxy‐1H‐pyrazoles. (2008) (2)
Synthesis of Racemic, N-BenzylatedNeoechinulin A and Isoneoechinulin A (2010) (2)
Amino Acids in the Synthesis of Heterocyclic Systems a Novel Synthesis of Fused Pyridinones (2010) (2)
Synthesis and characterisation of some new N-glycosides containing substituted pyridopyrimidinone, pyrimidopyridazinone, thiazolopyrimidinone and quinolizin-4-one moiety (2008) (2)
Serendipity at work: unexpected ring transformations of 4 aminopyrazolidin-3-ones into N-aminohydantoins (2010) (2)
Five-membered hetarenes with two nitrogen or phosphorus atoms (2002) (2)
Application of Alkyl 3-Dimethylamino-2-(1H-indol-3-yl)propenoates in the Synthesis of 3-Heteroarylindoles. (2004) (2)
Divergent Behavior of the Reactions Between 1,2-Diaza-1,3-dienes and 2,5- Dioxoimidazolidin-4-ylidene-succinates (2013) (2)
Synthesis of 1,5,6,7-Tetrahydro-4H-pyrazolo[4,3-c]pyridin-4-onesas Conformationally Constrained Pyrazole Analogues ofHistamine (2010) (1)
1,3-Dipolar cycloadditions of 2-diazopropane to 1-phenyl-bis-s-triazolo[4,3-b:3',4'-f]pyridazine. The synthesis of 11,11-dimethyl-11H-pyrazolo [3,4-d]bis-s-triazolo[4,3-b:3',4'-f]pyridazines, derivatives of a novel heterocyclic system (1986) (1)
HETEROCYCLES PART 102, BARRIERS TO ROTATION IN SOME N′-HETEROARYL-N,N-DIMETHYLFORMAMIDINES (1975) (1)
HYDRAZINOLYSIS OF SOME AZOLOPYRAZINES (1976) (1)
3-Dimethylaminopropenoates and Related Compounds in the Synthesis of Heterocyclic Systems and Heterocyclic Amino Acids (2000) (1)
Transformation of arylcarboxamides into 1,3-dioxo-1,3-dihydroisobenzofuran-4-carboxamides (2017) (1)
A New Approach for the Synthesis of Fused Pyrroles. The Synthesis of Acyl Substituted Pyrrolo(1,2‐x)azines. (1994) (1)
3-DIAZOPYRAZOLO(3,4-B)PYRIDINE, A VERSATILE SYNTHON FOR NEW HETEROCYCLIC SYSTEMS (1979) (1)
Perchloroimidazo[1,2-b]pyridazine. Synthesis and Nucleophilic Substitution. (1971) (1)
Thermal metal-free [2+2] cycloaddition of acetylenedicarboxylates to polysubstituted butadienes (2018) (1)
The Structure of the Product Formed by Condensation of Malononitrile with Dialkyl Acetone-1,3-dicarboxylates (2010) (1)
A PHOTO-REARRANGEMENT OF 5-DIAZOURACIL. A CONVENIENT SYNTHESIS OF 2-OXO-4-IMIDAZOLINE-4-CARBOXYLIC ACID DERIVATIVES (1979) (1)
Synthesis of 5-Substituted Ethyl 3-Oxo-2H-pyrazolo[4,3-c]pyridine-7-carboxylates. (2004) (1)
Synthesis of (S)-3-Heteroaryl-2-hydroxy-1-propyl Benzoates by ′Ring Switching′ Methodology. (2002) (1)
The Mannich Reaction for 2,5-Dimercapto-1,3,4-thiadiazole (1965) (1)
Stereoselective Synthesis of 5-[(Z)-Heteroarylmethylidene] Substituted Hydantoins and Thiohydantoins as Aplysinopsin Analogues (2002) (1)
Synthesis from Furans (2002) (1)
Imidazo[1,2-α][1,3,5]triazine, a new heteroaromatic system (1968) (1)
THE REACTION OF 3-DIAZO-3H-INDAZOLE WITH REACTIVE METHYLENE COMPOUNDS AND FORMATION OF INDAZOLO(3,2-C)-1,2,4-TRIAZINES (1974) (1)
Unexpected Cleavage of the N—N Bond in the Reactions of 3‐Pyrazolidinone‐1‐azomethine Imines with HCN. (2007) (1)
Structure of 7-phenyl-s-triazolo[1,5-b]pyridazine-8-carbonitrile (1987) (1)
RING CONTRACTION OF 4-DIAZO-1-PHENYL-5,6-DIOXO-1,4,5,6-TETRAHYDROPYRIDAZINE IN THE SOLID STATE VIA “PYRAZOLO-LACTONE” (1979) (1)
New Synthetic Approach for Pyrazolo[3,4-b]pyrazines and Isoxazolo[4,5-b]pyrazines (1982) (1)
A Simple Synthesis of Dimethyl 2‐[(Z)‐3‐Amino‐1‐oxo‐1‐(substituted)but‐2‐en‐2‐yl]fumarates: Potential Intermediates in the Synthesis of Polysubstituted Five‐ and Six‐Membered Heterocycles. (2016) (1)
[Preparation of some benzimidazole- and benzthiazole-2-sulfonamides]. (1965) (1)
A Simple One-Pot Synthesis of 1-(s-Triazolo[4,3-x]azinyl-3)substituted Polyols. (1998) (1)
Oxidative Ring-Opening of rel-(2R,3R,5S)-5-Aryl-2-benzoylamino-6,7-bis (methoxycarbonyl)-2,3-dihydro-1-oxo-3-phenyl-1H,5H-pyrazolo [1,2-a]-pyrazoles. Synthesis of rel-(2R,3R)-3-Phenyl-3- [5-aryl-3,4-bis(methoxycarbonyl)pyrazolyl-1]alanine Esters. (1999) (1)
Transformation of 1,5‐Diphenylpentane‐1,3,5‐trione (I). The Synthesis of Substituted (4H)‐Pyranones, Pyridin‐4(1H)‐ones and 4H‐Pyrano[3,2‐c]pyridin‐4‐ones. (2008) (1)
5.21 – N-Hetero-substituted Iminoacyl Functions (1995) (1)
METHYLATION OF HETEROCYCLIC COMPOUNDS CONTAINING IMINO, MERCAPTO, AND/OR HYDROXY GROUPS BY MEANS OF N,N-DIMETHYLFORMAMIDE DIMETHYL ACETAL (1982) (1)
Transformations of 4-Amino-5-cyanopyrimidines. The Synthesis and Transformations of Pyrimido[4,5-d]pyrimidines. (1986) (1)
Nitrosation of Methyl 2-Cinnamoylamino-3-dimethylaminopropenoates. Alkyl N-Cinnamoyloxalic Acid Hydroxyimidic Amides, Intermediates in the Synthesis of Alkyl 5-Styryl-1,2,4-oxadiazole-3-carboxylates. (1998) (1)
Heterocycles. CLXIX. Barriers to rotation in some N,N-Dimethyl-N′-heteroaryl, N,N-Diethyl-N′-heteroaryl-substituted formamidines and N,N-Dimethyl-N′-heteroaryl-substituted acetamidines (1978) (1)
Synthesis of Alkyl 1-(Substituted pyridin-2-yl)-1H-1,2,3-triazole-4-carboxylates by “Ring Switching” Transformation of 4-Oxo-4H-pyridino[1,2-a]pyrimidine-3-diazonium Tetrafluoroborates. (2000) (1)
A Synthesis and Transformations of Alkyl 2-[2-Cyano-2-(2-pyridinyl)ethenyl]amino-3-dimethylaminopropenoates. A One-Pot Synthesis of Pyrrolo[3,2-d]pyrimidin-4-ones. (2010) (1)
Synthesis of 2-substituted 6-(5-oxo-1-phenylpyrrolidin-3-yl)pyrimidin-4(3H)-ones (2013) (1)
Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. The Synthesis of Benzoylamino-Substituted 7H-Pyrano(2,3-d)pyrimidine, 1H,6H-Pyrano(2,3-c)pyrazole and 2H-1-Benzopyran Derivatives. (1990) (1)
Transformations of dimethyl (2E,3E)-2-〔(dimethylamino)methylene〕-3-(1-methyl-2,5-dioxoimidazolidin-4-ylidene)succinate with C-nucleophiles (2010) (1)
Reactions of methyl 2-(benzyloxycarbonyl)amino-3-dimethylaminopropenoate and related compounds with hydrazines. Regiospecific synthesis of 1-substituted-4-amino-substituted-1H-pyrazol-5-(2H)-ones (2006) (1)
THE SYNTHESIS AND STRUCTURE OF ETHYL 2-2,2-BIS(ETHOXYCARBONYL)ETHENYLAMINO-3-(SUBSTITUTED)AMINOPROPENOATES, INTERMEDIATES IN THE SYNTHESIS OF HETEROCY CLIC SYSTEMS (1997) (1)
Synthesis of 2-Unsubstituted 2,3,5,6,7,8-Hexahydropyrazolo[4,3-d][1,2]diazepinone-8-carboxylates (2007) (1)
Heterocycles, CLIX. A Novel Synthesis of Alkyl Indole-3-carboxylates (1976) (1)
Stereoselective Synthesis of (1R,5S)-4-[(E)-Alkylidene]-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-3-ones (2005) (1)
Correlation of Ring Nitrogen Substituents with Carbon-13 Nuclear Magnetic Resonance Data in Azoloazines. (1988) (1)
cis,trans-5,6,7,8-Diepoxy-8-carboxamido-5,6,7,8-tetrahydrotetrazolo[1,5-a]pyridine (1973) (1)
Reactions of Enaminones and Related Compounds with N,N‐Dimethylacetamide Dimethyl Acetal. A Simple One‐Pot Metal‐Free Synthesis of Polysubstituted Benzene Derivatives. (2014) (1)
Photochemical Wolff rearrangement of 5-diazo-6-phenyluracil in neutral solutions. The synthesis of alkyl 5-phenyl-2-oxo-4-imidazoline-4-carboxylic acid derivatives (1984) (1)
1,3-Dipolar Cycloaddition of 2-Diazoalkanes to Pyridazin-3(2H)-one Derivatives. The Formation of 3H-Pyrazolo(3,4-d)pyridazin-4(5H)-one and 3H-Pyrazolo(3,4-d)pyridazin-7(6H)-one Derivatives. (1991) (1)
Synthesis and transformations of novel L-phenylalanine derived pyrazolidin-3-ones. (2013) (1)
Cyclization of Isomeric 2-Hydrazino-4-methylbenzo[h]quinoline and 3-Hydrazino-1-methylbenzo[f]quinoline. A Reinterpretation (1982) (1)
Alkyl 2‐[2,2‐Disubstituted ethenyl]amino‐3‐dimethylaminopropenoates in the Synthesis of Heterocyclic Systems. An Alternative Method for Preparation of 3‐Amino‐4H‐pyrido[1,2‐a]pyrimidin‐4‐ones. (1998) (1)
4‐{3‐(Dimethylamino)‐1‐ [2‐(dimethylamino)vinyl]prop‐2‐enylidene}‐2‐phenyl‐1,3‐oxazol‐5(4H)‐one and 5‐{3‐(Dimethylamino)‐1‐ [2‐(dimethylamino)vinyl] prop‐2‐enylidene}‐3‐methyl‐2‐thioxo‐1,3‐thiazolidin‐4‐one in the Synthesis of 1,4‐Dihydropyridine Derivatives. (2003) (1)
Heterocyclen, 51. Mitt.: Synthesen einiger disubstituierter 1,3,5-Triazine (1967) (1)
Amino Acids in the Synthesis of Heterocyclic Systems. Synthesis of . gamma.-(5-(1,2,4-Triazinylidene))-α,β-dehydro-α-amino Acid Derivatives and 6H-Pyrido(1,2-d)(1,2,4)triazin-6-ones. (1995) (1)
Alkyl 2-(2-Benzoyl-2-ethoxycarbonyl-1-ethenyl)amino-3- dimethylaminopropenoates in the Synthesis of Heterocyclic Systems. (1997) (1)
Reactions of Ethyl (Z)‐2‐[2,2‐Bis(ethoxycarbonyl)vinyl]amino‐3‐dimethylaminopropenoate with C‐Nucleophiles. Synthesis of Substituted 3‐Amino‐2H‐pyran‐2‐ones. (1997) (1)
The structure of the product from the reaction of o-aminobenzaldoxime and acetic anhydride (1975) (1)
Alkyl (E,Z)-2-(2-Benzoyl-2-ethoxycarbonyl-1-ethenyl) amino-3-dimethylaminopropenoates in the Synthesis of Fused Pyrimidinones. A Facile Route to 3-Aminoazino-4H-pyrimidin-4-ones. (1998) (1)
1,2,4,5-Tetrazines (2008) (1)
Parallel Solution-phase Synthesis of (2S,4E)-4-(Arylaminomethylidene)pyroglutamic Acids (2010) (1)
The Synthesis and Transformation of Ethyl 2‐(2‐Acetyl‐2‐benzoyl‐1‐ethenyl)amino‐3‐dimethylaminopropenoate. A New Synthesis of 2,3,4‐Trisubstituted Pyrroles. (1998) (1)
Bromination of Diimidazo[1,2-b;2′,1′-f]pyridazine; A Reinvestigation (1982) (1)
The Synthesis of Azahomotryptophane Derivatives. The Transformation of N-Trifluoroacetyl-5-bromo-4-oxonorvaline Methyl Ester into 4-(Imidazo[1,2-a]azinyl-3)-4-oxohomoalanine Derivatives. (1997) (1)
Synthesis and Structure of Novel (S)‐1,6‐Dialkylpiperazine‐2,5‐diones and (3S,6S)‐1,3,6‐Trialkylpiperazine‐2,5‐diones. (2011) (1)
Amino Acids in the Synthesis of Heterocyclic Systems. Synthesis of Methyl 2-Acetylamino-3-dimethylaminopropenoate and 2-(N-Methyl-N- trifluoroacetyl)amino-3-dimethylaminopropenoate and Their Application in the Synthesis of Heterocyclic Compounds. (2010) (1)
Synthesis of 4‐ and 5‐(s‐Triazolo[4,3‐b]pyridazinyl‐3)‐substituted Cyclic Polyols. (1998) (1)
The Synthesis of 7-Substituted-2,3-dihydropyrido [4,3-d]pyridazine-1,4-diones and 1,4-Dioxo-7-substituted-1,2,3,4-tetrahydropyrido[4,3-d]pyridazine 6-Oxides from Methyl Ketones. (2017) (1)
Diethyl N,N‐Dimethylaminomethylenemalonate in the Synthesis of Fused Heterocyclic Systems. (1997) (1)
The Synthesis of Pyrazolo[1,2-a]pyrazoles. Regio- and Stereoselective 1,3-Dipolar Cycloadditions of (1Z)-rel-(4R,5R) -1-Arylmethylene-4-benzoylamino-5-phenyl-3-pyrazolidinon-1-azomethinimin es. (1998) (1)
A Simple Synthesis of 1‐Substituted Diethyl Pyrrole‐3,4‐dicarboxylates. (2009) (1)
Synthesis of N-Substituted 3-Aminomethylidenetetramic Acids (2005) (1)
A New Approach to 5H‐Pyrrolo[3,2‐d]pyrimidines (9‐Deazapurines) from 3‐Aminopyrrole‐2‐carboxylates. (1999) (0)
From 3-Halo-1-hydrazonoacetones (2002) (0)
From 2-Acetoxy-1,3-dicarbonyl Compounds and Hydrazines (2002) (0)
AZA-TRANSFER REACTIONS. A NOVEL METHOD FOR THE CONVERSION OF MONOSUBSTITUTED HYDRAZINO COMPOUNDS INTO HYDROCARBONS (1978) (0)
From Malononitriles and Its Derivatives and Hydrazine (2002) (0)
A GENERAL SYNTHESIS OF ALKYL 6-SUBSTITUTED PYRAZOLO(3,2-C)-S-TRIAZOLE-7-CARBOXYLATES (1979) (0)
Three substituted 3‐amino‐2‐benzoylaminopropenoic acid derivatives. Erratum (1994) (0)
Synthesis of 8-Hydroxyimidazo[1,2-a]pyridine-2-carboxylic Acid and Its Derivatives. (2008) (0)
Methyl 2‐(Bis(acetyl)ethenyl)aminopropenoate in the Synthesis of Heterocyclic Systems. (1997) (0)
Synthesis and Transformations of Nitrogen and Sulphur Containing Bicyclic Heterocyclic Systems (1979) (0)
N-Nitration of N-Unsubstituted Pyrazoles (2002) (0)
From Mono(acylhydrazones) of 1,3-Dicarbonyl Compounds (2002) (0)
From 3-Amino-1-methylbenzimidazolium Salts (2002) (0)
Synthesis from 1,2,3-Thiadiazoles (2002) (0)
Synthesis of 3-(2-Oxo-2H-pyranyl-3) Substituted Lactic Acid Derivatives. (2000) (0)
Modification of Heterofunctional Groups (2002) (0)
From 3-[(Dimethylamino)methylene]pyrrolidin-2-one (2002) (0)
Transformations of 1,2,4-Thiadiazolo(2,3-x)azines. (1987) (0)
Transformations of Heterocyclic N-Oxides into Derivatives of α-Heteroaryl Substituted α-Amino Acids and Dipeptides. (1987) (0)
N-Cyanomethylation with Acrylonitrile (2002) (0)
From Hydrazones and Aroyl Chloride (2002) (0)
From Tetracyanoethene and Hydrazine (2002) (0)
Simple and convenient preparation of new highly protected aziridines fused with pyrroline rings (2003) (0)
From 2-Pyran-4(3)-ones (2002) (0)
Modification of Carbon Functional Groups (2002) (0)
From 2-Haloacrylonitriles and Hydrazine (2002) (0)
Cross-Coupling Reactions of Metalated Pyrazole Derivatives (2002) (0)
1,3‐Dipolar Cycloadditions of Diazoalkanes to Pyridazine Derivatives. Thermal 1,5‐Sigmatropic Rearrangement of Methyl Groups in 3,3‐Dimethyl‐ 3H‐pyrazolo(3,4‐d)pyridazine Derivatives. (1991) (0)
From Hydrazones of Alkane-1,3-diones (2002) (0)
Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. A Simple Synthesis of Amino Derivatives of Isomeric Naphthopyranones and Naphthodipyranones. (1992) (0)
Enamino Esters in the Synthesis of Heterocyclic Systems. Transformation of Dimethyl Acetone-1,3-dicarboxylate into Polysubstituted 1,6-Naphthyridine-8-carboxylates. (2012) (0)
From 3-(2-Alkylidenehydrazino)propanenitriles (2002) (0)
From Malonic Acid Derivatives and Arylhydrazines (2002) (0)
Transformation of Amines and N-Heteroarylformamidines into Esters of Substituted β-Amino-α,β-dehydro-α-amino Acids. (1988) (0)
Reactions of Alkyl (Z)‐2‐[(E)‐2‐Cyano‐2‐(2‐pyridinyl)ethenyl] amino‐3‐dimethylaminopropenoates with C‐ and N‐Nucleophiles. The Synthesis of Fused 2H,5H‐Pyran‐2,5‐diones, 4H‐Pyrimidin‐4‐ones, and 1‐Heteroaryl‐1H‐imidazole‐4‐carboxylates. (2001) (0)
Fragment C—N—N—C—C (2002) (0)
From (Alkoxymethylene)malononitriles and Hydrazine (2002) (0)
With Carboxylic Anhydrides (2002) (0)
From 1-Perfluoroalkyl-1,3-dicarbonyl Compounds and Hydrazonoyl Halides (2002) (0)
CYCLIZATION OF ISOMERIC 2-HYDRAZINO-4-METHYLBENZO(H)QUINOLINE AND 3-HYDRAZINO-1-METHYLBENZO(F)QUINOLINE. A REINTERPRETATION (1982) (0)
Three Substituted 3-Amino-2-benzoylaminopropenoic Acid Derivatives. (1994) (0)
From Nitrile Imines (2002) (0)
Modification of Hydroxy Groups (2002) (0)
From 2-Substituted Alk-2-en-1-ones and Hydrazine (2002) (0)
1,3-Dipolar Cycloadditions of 5-(4-Methoxyphenyl)- and 5-(1H-Indol-3-yl)-Substituted (1Z,4R*,5R*)-1- (arylmethylidene)-4-benzamido-3-oxopyrazolidin-1-ium-2-ides to Olefinic Dipolarophiles (2009) (0)
STRUCTURAL ASSIGNMENT OF CYCLIC PRODUCTS FROM 1,2-DICARBOXYLIC ANHYDRIDES AND HYDRAZINE, S,S-DIMETHYL SULFOXIMIDES (1973) (0)
TRANSFORMATIONS OF 1,2,3-BENZOTHIADIAZOLE (1979) (0)
Thiazolones in the Synthesis of α,β‐Dehydro α‐Amino Acids and Their Further Transformations into Heterocyclic Systems (1993) (0)
Halogenation of 1,3-Disubstituted 1-Pyrazol-5-ols at Position 4 (2002) (0)
From Disubstituted Diazoalkanes and Alkynes (2002) (0)
Acylation of the Amino Group (2002) (0)
Meet Our Editorial Board Member (2020) (0)
PYRIDAZINE 42. MITT. TETRAZOLO‐AZIDO‐ISOMERISIERUNGEN ISOMERER PYRIDOTETRAZOLO(1,5‐B)PYRIDAZINE (1972) (0)
An Unequivocal Synthesis of Some Substituted 1,2,4-Triazolo(1,5-a)pyrimidines. (1987) (0)
The Role of Polysubstituted Heterocycles in the Synthesis of Bi- and Polycyclic Heterocycles (54 Literaturangaben). (1983) (0)
By Elimination of Benzamide from Methyl 3-(Benzoylamino)-4,5-dihydro-3-pyrazole-3-carboxylate Derivatives (2002) (0)
A Novel Approach to the Synthesis of 3-Acyl-Substituted Indolizines. Synthesis of 3-(Indolizinyl-2)alanine (III) and 4-(Indolizinyl-3) homoalanine Derivatives (1997) (0)
ABOUT THE MECHANISM OF FORMATION OF 3-AZIDOINDAZOLE FROM 3-DIAZOINDAZOLE OR 3-INDAZOLYLDIAZO PHENYL SULFIDE AND POTASSIUM AZIDE (1978) (0)
Synthesis from Cyclopropanes (2002) (0)
A simple synthesis of 4-aroyl-5-methyl-1H-imidazol-2(3H)-one derivatives (Enoxymone analogues) from aryl methyl ketones via enaminones (2013) (0)
From Arylhydrazones and Dimethyl Acetylenedicarboxylate (2002) (0)
Amino Acids as Synthons for Heterocycles. Formation of 1,2,4-Triazine Derivatives. (1990) (0)
Amino Acids in the Synthesis of Heterocyclic Systems. Synthesis of 4- Oxo-4H-pyrido(1,2-a)pyridines and 4-Oxo-4H-pyrido(1,2-a)pyrimidines. (1995) (0)
From Arylhydrazones and β-Oxo Esters (2002) (0)
BROMINATION OF DIIMIDAZO(1,2-B;2′1′-F)PYRIDAZINE; A REINVESTIGATION (1983) (0)
Synthesis of Some Tricyclic Heterocycles Fused at the N-1 - C-8 Bond of Imidazo[1,2-b]pyridazines (1975) (0)
From 3-(Alkylsulfanyl)acrylonitriles and Hydrazine (2002) (0)
From Malonaldehyde Acetals and Hydrazines (2002) (0)
Fragments N—N—C and C—C (2002) (0)
The Synthesis of 2-Substituted 3-(Dimethylamino)propenoates and Related Compounds and Their Application to the Synthesis of Heterocyclic Systems (2010) (0)
From Phenylhydrazones and -Aryltrifluoroacetimidoyl Iodides (2002) (0)
Synthesis from 1,3-Dithietanes (2002) (0)
Dimethylamine Substitution in N,N-Dimethyl Enamines. Synthesis of Aplysinopsin Analogues (V) and 3-Aminotetrahydrocoumarin Derivatives (X). (2001) (0)
Synthesis from Imidazoles (2002) (0)
From Diazoalkanes and Alkenes Followed by Elimination (2002) (0)
From Haloalkenes, Hydroxyalkenes, Hydroxyalkynes, or Halo-, Hydroxy-, and Aminocarbonyl Compounds and Hydrazine (2002) (0)
REACTIONS OF 3-DIAZOPYRAZOLO(3,4-B)PYRIDINE WITH SOME REACTIVE METHYLENE COMPOUNDS AND CYCLOADDITIONS (1977) (0)
Fragment N—C—C—C—N (2002) (0)
From 2-Cyano-3-(2-alkylhydrazino)- or 2-Cyano-3-(2-arylhydrazino)but-2-enethioamides (2002) (0)
Ring-Opening Reactions of Triazolo- and Tetrazolo-Pyridopyrimidines or Quinazolines with Some Carbon Nucleophiles. (1986) (0)
Synthesis from Pyrans (2002) (0)
From 2-Acryloyloxiranes and Hydrazine (2002) (0)
From (Aminomethylene)malononitriles and Hydrazine (2002) (0)
Substitution of Oxygen Functional Groups (2002) (0)
From Carbonyl Compounds and Alkyl Formate Followed by Reaction with Hydrazine Hydrate (2002) (0)
By Formation of One N—C Bond (2002) (0)
Substitution of Existing Substituents (2002) (0)
CCDC 171727: Experimental Crystal Structure Determination (2003) (0)
From Hydrazones and 1,2-Dicarbonyl Compounds (2002) (0)
Synthesis by Substituent Modification (2002) (0)
Study on the Preparation of Heteroaryl Substituted Enamines. A Simple Synthesis of Heteroaryl-Substituted Acetaldoximes from Enamines. (1996) (0)
From Thiomalonic Acid ,-Dialkyl Esters and Hydrazine (2002) (0)
From [(Aryldiazenyl)(methoxycarbonyl)methylene]triphenylphosphoranes and Dichlorocarbene (2002) (0)
Of Carbon Functionalities (2002) (0)
Synthesis of Pyrazolium Compounds by Protonation (2002) (0)
C-Acylation with Oxalyl Chloride (2002) (0)
Structure of 1,5,6-trimethyl-1H-pyrazolo[3,4-d]pyridazine-4,7(5H,6H)-dione (1988) (0)
Aromatization by 1,4-Addition to 4-Benzylidene-4-pyrazoles (2002) (0)
NEW SYNTHETIC APPROACH FOR ISOTHIAZOLO(4,5‐B)PYRAZINES AND ISOXAZOLO(5,4‐B)PYRIDINES (1984) (0)
From Tetracarbonyl Compounds and Hydrazines (2002) (0)
Synthesis from Pyridazines (2002) (0)
From β-Oxoaldehydes and Hydrazines (2002) (0)
Transformations of Diethyl 2‐[(Dimethylamino)methylene]‐3‐oxopentanedioate. A Simple Synthesis of Substituted 2‐Amino‐5‐oxo‐5,6‐dihydropyrido[4,3‐d]pyrimidine‐8‐carboxylates. (2009) (0)
From Oxazole-4-carbohydrazides (2002) (0)
From 1,2-Disubstituted 3-(Dimethylamino)prop-2-en-1-ones and Hydrazine (2002) (0)
PYRIDAZINES. LXXX. CHLORODEMETHYLATION OF SOME AZOLOAZINES (1976) (0)
A NOTEWORTHY IMPROVEMENT OF THE 3-DIAZO-4-OXO-3,4-DIHYDROQUINOLINE PHOTOSYNTHESIS OF INDOLE-3-CARBOXAMIDES (1977) (0)
From 3-Oxocarboxylic Acids and Hydrazines (2002) (0)
The Transformations of 4‐Heteroarylaminomethylene‐5(4H)‐oxazolones into Dehydropeptide Derivatives. (1996) (0)
The Synthesis and Transformations of Substituted 2-Hydroxy-3-dimethylaminopropenoates. The Preparation of Condensed 3-Hydroxypyran-2-ones. (2010) (0)
Seventy Years of Acta Chimica Slovenica. (2023) (0)
CCDC 238073: Experimental Crystal Structure Determination (2007) (0)
From 1,3-Dioximes (2002) (0)
Synthesis from 1,2,4-Oxadiazoles (2002) (0)
From α-Cyano Ketones and Hydrazines (2002) (0)
Reduction of 4-Alkylidenepyrazol-5(4)-ones (2002) (0)
From Alk-2-en-1-ones and Hydrazine (2002) (0)
PROTOTROPIC TAUTOMERISM OF GOITRIN. (1964) (0)
CONVENIENT CYCLIZATION OF O-DIFUNCTIONAL HETEROCYCLES WITH N,N-DIMETHYLFORMAMIDE DIMETHYL ACETAL (1974) (0)
From 1,3,4-Oxadiazolium-2-olates (Isosydnones) (2002) (0)
AN IMPROVED SYNTHESIS OF S-TRIAZOLO(1,5-X)AZINES (1979) (0)
Synthesis from Pyridines (2002) (0)
From 3-Oxocarboxylic Acids and 1-Alkyl-1-nitrosohydrazines (2002) (0)
With Ammonia and Amines in the Presence of Copper Powder or Copper(I) Bromide (Ullmann Reaction) (2002) (0)
CCDC 296780: Experimental Crystal Structure Determination (2007) (0)
1,3-Dipolar Cycloadditions of (1Z,4R*,5R*)-4-Benzamido-3-oxo-5-phenylpyrazolidin-1-ium-2-ides to Ethyl Propiolate. (2008) (0)
Attempts to Prepare Some 3-Substituted Azolo[1,2-x]azines, Intermediates in the Synthesis of Azaaplysinopsin Derivatives. (2000) (0)
Synthesis from Oxazoles (2002) (0)
Synthesis from Aziridines (2002) (0)
From Monohydrazones of 1,2-Dicarbonyl Compounds and Diethyl [(Ethylsulfanyl)methyl]phosphonate (2002) (0)
CYCLOADDITION REACTIONS OF THE ANHYDRO-4-HYDROXYTHIAZOLIUM HYDROXIDE SYSTEM WITH DIMETHYL MALEATE AND DIMETHYL FUMARATE. X-RAY DETERMINATION OF THE EXO STRUCTURE OF THE CYCLOADDUCTS (1979) (0)
1,3-Dipolar Cycloaddition of 2-Diazopropane to 1-Phenyl-bis-s-triazolo[4,3-b:3′,4′-f]pyridazine. The Synthesis of 11,11-Dimethyl-11H-pyrazolo[3,4-d]bis-s-triazolo[4,3-b:3′4′-f]pyridazines, Derivatives of a Novel Heterocyclic System. (1986) (0)
Fragments N—N—C, C, and C (2002) (0)
The Synthesis of Some Dialkyl 4-(3-Substituted amino)phenyl-1,4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylates. (1998) (0)
Nitrosation of Methyl 2-Acylamino-3-dimethylaminopropenoates. A Simple Conversion of N-Acylglycines into 5-Substituted 1,2,4-Oxadiazole-3- carboxylates. (1996) (0)
From Hydrazones of 1,1-Dialkoxy-3-oxoalkanes (2002) (0)
Synthesis from 1,2,3-Oxadiazolium-5-olates (Sydnones) (2002) (0)
From Alk-1-enylhydrazones (2002) (0)
α‐Amino Acid Derived Enaminones and Their Application in the Synthesis of N‐Protected Methyl 5‐Substituted‐4‐hydroxypyrrole‐3‐carboxylates and Other Heterocycles. (2014) (0)
Coupling of Heteroaryldiazonium Tetrafluoroborates with 1,3-Dicarbonyl Compounds — Regioselective Synthesis of Alkyl 1-Heteroaryl-4-hydroxy-1H-pyrazole-3-carboxylates. (2003) (0)
From Nitrile Imines and Alkynes (2002) (0)
With Acyl Chlorides (2002) (0)
Metalation of Pyrazoles (2002) (0)
Reactions of Heterocyclic N‐Oxides. The Synthesis of α‐Heteroaryl‐α‐amino Acid Derivatives and Dipeptides. (1992) (0)
NEIGHBORING GROUP PARTICIPATION IN FORMATION OF CONDENSED AZINES. FORMATION OF PYRAZOLO(3,4-B)PYRAZINES, ISOXAZOLO(4,5-B)PYRAZINES AND ISOTHIAZOLO(5,4-B)PYRIDINE. HETEROCYCLES. CCX (1982) (0)
By Formation of One C—C Bond (2002) (0)
Methyl 2-Benzoylamino-3-dimethylaminopropenoate (I) in the Synthesis of Fused Pyranones. The Synthesis of Derivatives of Tetrahydro-2H-1-benzopyran-2-one, Isomeric 2H-Naphtho(1,2-b)pyran-2-one and 3H-Naphtho(2,1-b)pyran-3-one, Pyrano( (1990) (0)
1,3‐Dipolar Cycloadditions of Diazoalkanes to Heteroaromatic Systems. The Synthesis of Triazolo(4,3‐b)(1,2)diazepine and Cyclopropa(e)pyrazolo(4,3‐c)azolo(1,5‐a)pyridine Derivatives. (1989) (0)
From 2-(Aroylmethylene)imidazolidines (2002) (0)
Reductive Ring Cleavage of 1‐Alkyl‐4‐benzoylamino‐5‐phenyl‐3‐pyrazolidinones with Raney‐Nickel Alloy. Synthesis of N‐Benzoyl‐3‐alkylamino‐3‐phenylalanine Amides from rel‐(4R,5R)‐4‐Benzoylamino‐5‐phenyl‐3‐pyrazolidinone. (1999) (0)
SYNTHESES AND TRANSFORMATIONS OF 2-AMINOTHIAZOLO (5,4-b)- AND -(4,5-c) PYRIDINES (1979) (0)
From 2-Hydroxyimino-1,3-dicarbonyl Compounds and Hydrazines (2002) (0)
1,3-Dipolar Cycloaddition of Diazomethane to Azolopyridazines. Synthesis of 8-Methyl-8H- and 9-Methyl-9H-pyrazolo(3,4-d)-s-triazolo(4,3-b)pyridazine and 1-Methyl-1H- and 2-Methyl-2H-imidazo(1,2-b)pyrazolo(3,4-d)pyridazine Derivatives. (1989) (0)
From 1,1-Dinitroalkanes and Hydrazine (2002) (0)
Transformations of (S)‐1‐Acyl‐3‐ [(E)‐(dimethylamino)‐methylidene]‐5‐(methoxycarbonyl)pyrrolidin‐2‐ones. A One‐Step Synthesis of (S)‐N‐Benzoyl‐3‐(1‐heteroaryl‐5‐hydroxy‐1H‐pyrazolyl‐4)alanine Esters. (2000) (0)
From 2-Substituted 4-Chloro-, 4-Hydroxy-, 4-Alkoxy-, and 4-(Alkylsulfanyl)pyridazin-3(2)-ones (2002) (0)
From Pyrimidines and Hydrazine Hydrate (2002) (0)
HETEROCYCLES PART 118, A NOVEL METHOD OF ANNELATION OF THE 1,2,4-TRIAZOLE RING OF THE N2-C3 BOND TO AZINES (1974) (0)
SYNTHESES AND TRANSFORMATIONS OF SOME 1,2,4-OXADIAZOLYLPYRAZINES (1983) (0)
Modification of Substituents (2002) (0)
Transformations of 1-(2-Chloropyridyl-3)-4-ethoxycarbonyl- and 1-(2-Chloropyridyl-3)-4-ethoxycarbonylmethyl Thiosemicarbazides. Attempts to Prepare Pyrido(3,2-e)-1,2,4-thiadiazine. (1988) (0)
Microwave-Assisted Direct Amidation of Ethyl 1-Phenyl-5-hydroxy-1H-pyrazole-4-carboxylate. (2015) (0)
REACTION OF SOME AZOLOPYRIDO(2,3-D)PYRIMIDINES WITH ACTIVE METHYLENE COMPOUNDS (1984) (0)
From 2-Acryloyl-3-(dimethylamino)prop-2-enoates and Hydrazine (2002) (0)
From 1-Aryl-5-bromo-6-methylpyrimidine-2,4(1,3)-diones (2002) (0)
From Diazo Compounds by 1,3-Dipolar Cycloadditions (2002) (0)
PYRIDAZINES PART 59, AN UNUSUAL REACTION OF AZIDOAZOLOPYRIDAZINES WITH DIETHYLAMINE (1974) (0)
The Synthesis of β-Heteroarlyamino-α,β-dehydro-α-amino Acid and β-Heteroarylamino-α-amino Acid Derivatives. (1989) (0)
From Hydrazones and Carboxylic Acid Derivatives (2002) (0)
CCDC 286430: Experimental Crystal Structure Determination (2006) (0)
1,3‐DIPOLAR CYCLOADDITION OF 2‐DIAZOPROPANE TO IMIDAZO(1,2‐B)PYRIDAZINE DERIVATIVES. THE SYNTHESIS OF IMIDAZO(1,2‐B)PYRAZOLO(4,3‐D)PYRIDAZINES, DERIVATIVES OF A NOVEL HETEROCYCLIC SYSTEM (1984) (0)
With Iodobenzene Diacetate (2002) (0)
Synthesis of Dimethyl 1-(Hetero)aryl-4-oxo-1,4-dihydropyridazine-3,5-dicarboxylates from Dimethyl 3-Oxopentane-1,5-dioates. (2008) (0)
From 2-Substituted 5,6-Diphenyl-2,3-dihydropyridazine (2002) (0)
From Other Compounds and Hydrazine (2002) (0)
1,3‐Dipolar Cycloadditions of Diazoalkanes to Pyridazines. Asymmetric 1,3‐Dipolar Cycloaddition of Azomethine Imines Derived from Diazoalkane—Pyridazine Cycloadducts (1999) (0)
From 3-Oxocarboxylic Acid Derivatives and Acylhydrazines (2002) (0)
From 5-Substituted 2-Oxopyrrolidine-3-carbaldehydes (2002) (0)
From Nitrile Imines and Alkenes with a Leaving Group at the 3-Position (2002) (0)
Oxidation of Alkyl Group (2002) (0)
Stereoselective 1,3-Dipolar Cycloadditions to (S)-1-Benzoyl-3-(cyanomethylidene)-5-(methoxycarbonyl)pyrrolidin-2-one. (1999) (0)
Stereoselective Amination of 5-Substituted γ-Lactones and γ-Lactams. A Convenient Route for the Preparation of 5-Substituted (3S,5S)-3-Acetylaminotetrahydrofuran-2-ones and (3S,5S)-3-Acetylaminopyrrolidin-2-ones. (1999) (0)
PYRIDAZINE 38. MITT. PYRROLO(1,2-B)PYRIDAZINE UND 4H-4A, 7B-DIAZACYCLOPENT(CD)INDENE (1971) (0)
SYNTHESIS OF S-TRIAZOLO(1,5-A)PYRIDINE 1-OXIDES (1979) (0)
Synthesis of 2 ‐ substituted 6 ‐ ( 5 ‐ oxo ‐ 1 ‐ phenylpyrrolidin ‐ 3 ‐ yl ) pyrimidin ‐ 4 ( 3 H ) ‐ ones (2013) (0)
From Malonic Acid Anilide Esters and Arylhydrazines (2002) (0)
From 3-Haloacrylonitriles and Hydrazine (2002) (0)
Transformations of Isomeric Naphthopyranones. The Synthesis of Substituted β‐Naphthyl‐α,β‐dehydro‐α‐amino Acid Derivatives. (1993) (0)
From 1,3-Dinitroalkanes and Hydrazine (2002) (0)
From 1,2,6-Thiadiazines by Extrusion of Sulfur (2002) (0)
C-Acylation with Acetic Anhydride (2002) (0)
From Diazoalkanes and Alkynes (2002) (0)
7-HYDRAZINO- UND 7-AZIDO-3-PHENYL-PYRIDAZINO(6,1-C)TRIAZIN (1970) (0)
The Synthesis of Stable 8‐Alkylidene‐9H‐pyrazolo(4,3‐d)tetrazolo‐(1,5‐b)pyridazine Azomethine Imines and Their Transformation into 9,10‐Dihydro‐8H‐tetrazolo(1′,5′:1,6)pyridazino(4,5c)(1,2)diazepines, Derivatives of a Novel Heterocyclic System. (1991) (0)
By Formation of Two N—C Bonds (2002) (0)
From Pyranones and Benzopyranone (2002) (0)
Synthesis and Transformation of N,N‐Dimethylaminomethylidene Derivatives of Indolylglycines and Some Other Dipeptides. (2008) (0)
FORMATION OF (2+2) CYCLOADDUCTS FROM HETEROCYCLIC FORMAMIDINES AND PHENYL ISOCYANATE (1980) (0)
Synthesis of Spirolactones by 1,3-Dipolar Cycloadditions to Methyl (S)-3-[(E)-Cyanomethylidene]-2-oxotetrahydrofuran-5-carboxylate. (2002) (0)
From Aldehydes and Tosylhydrazones of (Dialkoxyphosphoryl)acetaldehydes (2002) (0)
Synthesis from 1-1,5-Diazepines (2002) (0)
Transformations of Heterocyclic Amidines and Amide Oximes: Synthesis of s-Triazolo(1′,5′:1,6)pyrimido(4,5-c)pyridazines, s-Triazolo(1′,5′:2,3)pyridazino(4,5-c)quinoline and 7H-2,3,4,6,7-Pentaazabenz(d,e)anthracene, Derivatives of Nove (1987) (0)
From 2-Arylazo-1,3-dicarbonyl Compounds and Acylhydrazines (2002) (0)
From 2,3-Dihalofumaronitriles and Hydrazine (2002) (0)
From Isoxazolium Salts and Hydrazines (2002) (0)
HETEROCYCLES. PART CLXXXVII. SYNTHESES OF SOME AZINYLHYDROXYLAMINES (1980) (0)
Hydrolysis of N,N-Dimethylenamines. Stereospecific Synthesis of Their Enol and Enol Ester Derivatives. (2003) (0)
From 3,5-Disubstituted Isoxazoles by Reductive Cleavage of the O—N Bond Followed by Treatment with Hydrazine (2002) (0)
AN UNUSUAL 1-3 PHOTO CYCLOADDITION OF ALKENES TO S-TRIAZOLO(4,3-B)PYRIDAZINE (1973) (0)
HETEROCYCLES. PART CLXII. AZIDO-TETRAZOLO ISOMERIZATIONS OF SOME THIAZOLOPYRIDINES (1978) (0)
From Cyanoacetic Acid Esters and Hydrazine (2002) (0)
From Aldehydes and Alkylated Tosylhydrazono Phosphonates (2002) (0)
The Synthesis and Transformations of 2‐[2‐Ethoxycarbonyl‐2‐(2‐pyridinyl)ethenyl] amino‐3‐dimethylaminopropenoates. The Synthesis of Substituted β‐Amino‐α,β‐didehydro‐α‐amino Acid Derivatives. (2001) (0)
Parallel Solution‐Phase Synthesis of (Z)‐3‐(Arylamino)‐2,3‐dehydroalanine Derivatives and Solid‐Phase Synthesis of Fused Pyrimidones. (2004) (0)
3-BROMOIMIDAZO(1,2-B)PYRIDAZINE-BROMINE AND 3-BROMO-6-CHLOROIMIDAZO(1,2-B)PYRIDAZINE-BROMINE COMPLEXES: NEW BROMINATING AGENTS FOR ORGANIC COMPOUNDS (1982) (0)
Synthesis by Ring-Closure Reactions (2002) (0)
Selective Synthesis and Cycloaddition Reactions of New Azomethine Imines Containing a 1,2,4‐Triazine Ring. (2005) (0)
Synthesis of Pyrazolium Compounds by Quarternization (2002) (0)
Synthesis and Transformations of Ethyl (2E)‐3‐N,N‐Dimethylamino‐2‐ (5‐ethoxy‐1‐phenyl‐1H‐pyrazol‐3‐yl)propenoate. (2006) (0)
A One-Step Transformation of (S)-1-Benzoyl-3- [(E)-dimethylaminomethylidene]-5-methoxycarbonylpyrrolidin-2-one into Quinolizinyl- and 2H-2-Pyranonyl-Substituted Alanine Derivatives. (1999) (0)
From Isoxazoles and Hydrazines (2002) (0)
Fragments C—C—C and N—N (2002) (0)
Synthesis by Ring Transformation (2002) (0)
PYRIDAZINES. LXXVIII. USE OF N,N-DIMETHYLAMINOMETHYLENE DERIVATIVES OF SOME AMINO AND HYDRAZINO HETEROCYCLES IN ORGANIC SYNTHESIS (1976) (0)
From 3,3-Diamino-2-nitroprop-2-enethioamides and Hydrazine (2002) (0)
PYRIDAZINES PART 70, REACTIONS OF AZIDOAZOLOPYRIDAZINES WITH UNSATURATED COMPOUNDS (1975) (0)
Modification of the Nitro Group (2002) (0)
From Cinnamaldehyde (2-Phosphoniovinyl)hydrazone Halides (2002) (0)
From Ketene Aminals and Nitrile Imines (2002) (0)
Transformations of Dimethyl (2E,3E)-2- [(Dimethylamino)methylene] -3-(1-methyl-2,5-dioxoimidazolidin-4-ylidene)succinate with C-Nucleophiles. (2011) (0)
ChemInform Abstract: Synthesis and Transformations of Ethyl (Z)-2-(2,3-Dihydro-1,3-dioxo-1H-isoindol-2-yl)-3- (dimethylamino)propenoate. (2002) (0)
From Hydrazones or Azines by Vilsmeier–Haack Reaction (2002) (0)
N-Alkylation by Michael Addition (2002) (0)
Synthesis and Transformations of Methyl (E)‐2‐(Acetylamino)‐3‐cyanoprop‐2‐enoate and Methyl (E)‐2‐(Benzoylamino)‐3‐cyanoprop‐2‐enoate, Versatile Reagents for the Preparation of Polyfunctional Heterocyclic Systems. (1998) (0)
From α-Cyano-α-hydroxyimino Ketones and Hydrazines (2002) (0)
From Hydrazonoyl Halides and Phosphoranes (2002) (0)
Reactions of Quinolizine‐ and Pyridino[1,2‐a]pyrimidine‐3‐diazonium Tetrafluoroborates with Aliphatic Amines. (2004) (0)
CCDC 171725: Experimental Crystal Structure Determination (2003) (0)
From 2-(Arylmethylene)furan-2(3)-ones (2002) (0)
From Propanediimidic Esters and Hydrazine (2002) (0)
From Furan-2,4(3,5)-ones or 4-Hydroxyfuran-2(5)-ones (2002) (0)
Transformations of Ethyl 3-{[1-(Alkoxycarbonyl)-2-(dimethylamino)ethenyl] amino}-2-cyanoprop-2-enoates: Synthesis of Dialkyl 3-Aminopyrrole-2,4-dicarboxylates. (1998) (0)
PERCHLORIMIDAZO(1,2-B)PYRIDAZIN, SYNTHESE UND NUCLEOPHILE SUBSTITUTION (1971) (0)
FORMATION OF THIADIAZOLE AND THIAZOLE RINGS FROM HETEROCYCLES WITH A THIOAMIDE SIDE CHAIN (1979) (0)
A Simple Stereoselective One-Pot Synthesis of C-Nucleosides by 1,3- Dipolar Cycloaddition of Chiral Azomethine Imines Prepared in situ. (1994) (0)
With Aryl Halides (2002) (0)
A Simple Metal‐Free Synthesis of 2,4,5‐Trisubstituted Pyridines and Pyridine N‐Oxides by [2 + 2] Cycloaddition of Enaminones to Propyne Iminium Salts. (2015) (0)
From Hydrazones and (Dichloromethylene)dimethylammonium Chloride (2002) (0)
Synthesis from Tetrazines (2002) (0)
PHOTOLYSE VON 6-AZIDO-AZOLOPYRIDAZINEN (1971) (0)
Diastereoselective Synthesis of Dimethyl (4R*,4a¢R*,7a¢R*)-1-Aryl-6¢-benzoyl- 4a¢-methyl-5-oxo-1,4¢,4a¢,5,5¢,6¢-hexahydrospiro[pyrazole-4,7¢-pyrrolo[3,4-c] pyridazine]-3¢,7a¢(1¢H)-dicarboxylates (2008) (0)
C-Acylation and C-Alkylation (2002) (0)
Substitution of Halogen (2002) (0)
OXIDATIVE TRANSFORMATIONS OF SOME AZINYL SULFIDES (1976) (0)
Synthesis of s-Triazolo[1,5-c]pyrimidine1 (2002) (0)
C-Alkylation at Position 4 (2002) (0)
Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. The Synthesis of Substituted 3-Benzoylamino-2H-pyran-2-ones. (1990) (0)
PYRIDAZINES PART 58, OXIDATIVE TRANSFORMATIONS OF PYRIDAZINYL SULFIDES (1973) (0)
From Mono(methylhydrazones) or Mono{[(alkoxycarbonyl)methyl]hydrazones} of 1,2-Dicarbonyl Compounds (2002) (0)
From ,3-Diaryl-3-iminoprop-1-enamines (2002) (0)
Transformations of N-heteroarylformamidines and N-heteroarylformamidine oximes new syntheses and transformations of oxazolo[4,5—d]pyridazines (1985) (0)
Reactions of Methyl 2-(Benzyloxycarbonyl)amino-3-dimethylaminopropenoate and Related Compounds with Hydrazines. Regiospecific Synthesis of 1-Substituted-4-amino-substituted-1H-pyrazol-5-(2H)-ones. (2007) (0)
Deuteration of Pyrazoles (2002) (0)
Parallel synthesis of 7-heteroaryl-pyrazolo[1,5-a]pyrimidine-3-carboxamides (2013) (0)
Substitution of Nitrogen Functional Groups (2002) (0)
Modification of the Amino Group (2002) (0)
[On the synthesis of 1,2,4-thiadiazolo-(4,5-a)-benzimidazole-1,1-dioxide, a new heterocyclic system]. (1967) (0)
From Arylhydrazones of Active Methylene Compounds and α-Halocarbonyl Compounds and Chloroacetonitrile (2002) (0)
N-Alkylation with Alkyl Halides (2002) (0)
Transformation of 4-(1-Dimethylaminoethylidene)-2-phenyl-5(4H)-oxazolone into Methyl 2-Benzoylamino-3-oxobutanoate. The Synthesis of 1-Substituted 4-Benzoylamino-3-methyl-5(2H)-pyrazolones. (1999) (0)
Pyridazines. Part 86. Some Mesoionic Mercaptoazolopyridazines. (1977) (0)
From 2-(Dicyanomethylene)oxazolidine (2002) (0)
From 3-Diazoalk-1-enes (2002) (0)
Synthesis and Transformations of Alkyl 1,5‐Bis(dimethylamino)‐3‐oxopenta‐1,4‐diene‐2,4‐dicarboxylates. A Simple Synthesis of Dialkyl 1‐Substituted 4‐Oxo‐1,4‐dihydropyridine‐3,5‐dicarboxylates. (2001) (0)
The Synthesis and Transformations of 3-Ethoxycarbonyl-2-isothiocyanatopyridine. Pyrido(2,3-d)pyrimidines and Some Azolopyrido(2,3-d)pyrimidines. (1990) (0)
New Approaches to the Synthesis of Bicyclic and Polycyclic Nitrogen-Containing Heterocycles (1989) (0)
PYRIDAZINES. LXXV. QUATERNARY AND MESOIONIC S-TRIAZOLO(4,3-B)PYRIDAZINES (1976) (0)
With Lead(IV) Acetate (2002) (0)
Palladium-Catalyzed Cross Coupling of [1-(Benzyloxy)-1-pyrazol-5-yl]zinc Chloride with Electrophiles (2002) (0)
Functionalized Enamines in the Synthesis of Some Heterocyclic Compounds. (1987) (0)
From 2-Diazocarbonyl Compounds and Alkynes (2002) (0)
Transformations of Ethyl 2‐Amino‐4‐(2‐ethoxy‐2‐oxoethyl)thiazole‐5‐carboxylate into 5‐Substituted 2‐Amino‐4‐oxo‐4,5‐dihydrothiazolo[5,4‐c]pyridine‐7‐carboxylates. (2010) (0)
The Synthesis and Transformations of 2H‐Naphtho(1,2‐b)pyran‐2‐one Derivatives. Naphtho(2′,1′:5,6)pyrano(3,4‐d)(1,3)oxazines and Naphtho( 1′,2′:5,6)pyrano(3,4‐d)pyrimidines, Derivatives of Two New Heterocyclic Systems. (2010) (0)
Retention of Ring Size (2002) (0)
Synthesis and Transformations of Some Pyrido(2,3-d)pyrimidines. (1987) (0)
Reaction of Methyl (2E)-3-Dimethylamino-2-(1H-indol-3-yl)-propenoate with Ureas: Facile Entry into the Polycyclic Meridianin Analogues with Uracil Structural Unit. (2005) (0)
Synthesis and Reactivity of (Z)‐3‐Benzoylamino‐4‐dimethylamino‐2‐oxo‐3‐butene. Preparation of 1‐Aryl‐ and 1‐Heteroaryl‐Substituted 4‐Benzoylamino‐5‐methyl‐1H‐pyrazoles. (2003) (0)
Neighbouring Group Interaction in ortho-Substituted Aminopyridines. Formation of 1,2,4-Oxadiazolylpyridines and Pyrido[2,3-d]pyrimidines 3-Oxides (1978) (0)
Synthesis from Oxiranes (2002) (0)
The Structure of β-Heteroaryl-α,β-dehydro-α- amino Acid Derivatives, Intermediates in the Synthesis of Fused Pyran- 2-ones. Substituted Methyl (Z)-2-Benzoylamino-3-(5-oxopyrazolinyl-4) propenoates. (1992) (0)
Transformations of N-Heteroarylformamidines into Derivatives of β-Heteroarylamino-α,β-dehydro-α-amino Acids, β-Heteroarylamino-α-amino Acids, and Dipeptides. (1988) (0)
Synthesis and Antimycobacterial Activity of Alkyl 1‐Heteroaryl‐1H‐1,2,3‐triazole‐4‐carboxylates. (2006) (0)
From α-Cyano-α-(-methylanilino) Ketones and Hydrazines (2002) (0)
From 2-(Dicyanomethylene)pyrrolidines (2002) (0)
From Six-Membered Rings (2002) (0)
From Symmetrical Acrolein Azines with Leaving Groups at 3-Position (2002) (0)
From Nitroalkanes or 1-Nitroalkenes and Hydrazine (2002) (0)
The Synthesis of 3-[(Dimethylamino)(2-phenyl-5-oxo-2-oxazolinylidene-4)methyl]imidazo [1,2-x]azines and Related Compounds, Intermediates in the Formation of Azaaplysinopsin Derivatives. (1999) (0)
Unexpected Behavior of the Reaction Between 1,2‐Diaza‐1,3‐butadienes and 3‐Dimethylaminopropenoates: A Useful Entry to New Pyrrolines, Pyrroles, and Oxazolines. (2005) (0)
Directed Regiospecificity of 1,3‐Dipolar Cycloaddition of 2‐ Diazopropane to 4‐ and 5‐Substituted Pyridazin‐3(2H)‐ones. (1991) (0)
C-Nitration of Pyrazoles with Acyl Nitrates (2002) (0)
From 3-Acetyldihydro-2-pyran-2,4(3)-diones (2002) (0)
C-Acylation with Acyl Halides (2002) (0)
An unusual 1 – 3 photo cycloaddition of alkenes to s-triazolo/4,3-b/pyridazine (1973) (0)
From 2-Substituted Malononitriles and Hydrazine (2002) (0)
STRUCTURE OF THE PRODUCT FROM THE REACTION OF O-AMINOBENZALDOXIME AND ACETIC ANHYDRIDE (1976) (0)
Synthesis from Isothiazoles (2002) (0)
Professor Miha Tišler (2017) (0)
Synthesis from 1,2,3-Triazoles (2002) (0)
From Alkyl [Alkoxy(imino)methyl]acetates and Arylhydrazine (2002) (0)
The Synthesis and Transformations of 9H-Imidazo(1,2-b)pyrazolo(4,3-d)pyridazine and 9H-Pyrazolo(4,3-d)-s-triazolo(4,3-b)pyridazine Derivatives. (1988) (0)
From β-Aminothiocinnamic Acid Anilide (2002) (0)
SYNTHESIS OF SOME 1,2,4-THIADIAZOLO(2,3-A)PYRIDINE DERIVATIVES AND ITS AZA ANALOGUES (1975) (0)
From 4-[(Dimethylamino)methylene]oxazol-5(4)-ones (2002) (0)
From Seven-Membered Rings (2002) (0)
Synthesis and Properties of N-Substituted (1R,5S)-4-Aminomethylidene-1,8,8-trimethyl-2-oxabicyclo [3.2.1]octan-2-ones. (2004) (0)
By Addition of Nitrile Imine (2002) (0)
With Anionic Nucleophiles (2002) (0)
Hydrolysis of the Trifluoroacetyl Group to the Carboxy Group (2002) (0)
Reactions of Methyl (E,Z)‐2‐(2‐Benzoyl‐2‐ethoxycarbonyl‐1‐ethenyl) amino‐3‐dimethylaminopropenoate with Heteroarylhydrazines. 2‐(2‐Benzoyl‐2‐ethoxycarbonyl‐1‐ethenyl) amino‐3‐heteroarylhydrazonopropanoates and 1‐Heteroaryl‐4‐ethoxycarbonyl‐3‐phenylpyrazoles. (1998) (0)
A Simple Metal‐Free Synthesis of 2‐Substituted Pyridine‐4,5‐dicarboxylates and Their N‐Oxides. (2012) (0)
From Benzoin Phenylhydrazones and Aldehydes (2002) (0)
From Prop-2-enenitriles and Hydrazides or Thiohydrazides (2002) (0)
From 3,3-Disubstituted Alk-2-en-1-one Tosylhydrazones (2002) (0)
Synthesis from Thiirene 1,1-Dioxides (2002) (0)
1,3-Dipolar Cycloadditions of Diazoalkanes to Some Nitrogen-Containing Heteroaromatic Systems (1991) (0)
A Synthesis of 2-Oxo-2H-pyrano(2,3-f)quinoline Derivatives (III). (1994) (0)
Regioselective Synthesis of Ethyl Pyrazolecarboxylates from Ethyl 3‐[(Dimethylamino)methylidene]pyruvate and Diethyl 3‐[(Dimethylamino)methylidene]‐2‐oxosuccinate. Isolation of Ethyl 4,5‐Dihydro‐1‐heteroaryl‐5‐hydroxy‐1H‐pyrazole‐5‐carboxylates as Stable Intermediates in the Pyrazole Ring Formation. (2003) (0)
From Alkenes and Diazocarbonyl Compounds Followed by Elimination (2002) (0)
Photochemically induced formation of some azaheterocyclic compounds (1981) (0)
Reactions of Alkyl (Z)‐2‐[(E)‐2‐Ethoxycarbonyl‐2‐(2‐pyridinyl)ethenyl] amino‐3‐dimethylaminopropenoates with C‐ and N‐Nucleophiles. The Synthesis of Fused Pyranones, Pyridinones and Pyrimidinones. (2001) (0)
C-Alkylation at Position 5 (2002) (0)
Transformations of Methyl L-(-)-Thiazolidine-4-carboxylate, 2-Amino-2- thiazoline, and 2-Aminothiazole into Thiazoloazines and Azolothiazoles. (1997) (0)
Parallel Solution-Phase Synthesis of (2S,4E)-4-(Arylaminomethylidene)pyroglutamic Acids. (2010) (0)
Transformations of (1E,3E)-1-(Benzoylamino)-4- (dimethylamino)buta-1,3-diene-1,2,3-tricarboxylates into Pyridine and Pyrrole Derivatives. (2009) (0)
CCDC 273753: Experimental Crystal Structure Determination (2006) (0)
HETEROCYCLIC DIAZO COMPOUNDS AS SYNTHONS IN ORGANIC SYNTHESIS. (REVIEW) (1980) (0)
The Synthesis of 5‐Substituted 3‐Benzoylamino‐6‐(2‐substituted amino‐1‐ ethenyl)‐2H‐pyran‐2‐ones and Their Transformations into 2H‐Pyrano(3,2‐ c)pyridine Derivatives. (1996) (0)
Rearrangements of 5-Acetyl-3-benzoylamino-6-(2-dimethylamino-1-ethenyl) -2H-pyran-2-one and 3-Benzoylamino-6-(2-dimethylamino-1-ethenyl)-5- ethoxycarbonyl-2H-pyran-2-one into 1-Aminopyridine, Pyrano(2,3-b) pyridine and Isoxazole Derivatives. (1997) (0)
Synthesis of Pyrazolium Compounds by N-Oxidation (2002) (0)
Some Transformations of 3‐Amino‐4‐alkoxycarbonyl‐6‐hydroxy‐2H‐1‐ benzopyran‐2‐ones. The Synthesis of (1)Benzopyrano(3,4‐d)(1,3)oxazine and (1)Benzopyrano(3,4‐d)pyrimidine Derivatives. (1991) (0)
Transformations of 1-Azinyl-4-ethoxycarbonyl Thiosemicarbazides. The Synthesis of 3-Ethoxycarbonylamino-s-triazolo(4,3-x)azines. (1988) (0)
1,3‐Dipolar Cycloaddition of Diazomethane to Azolopyridazines. The Synthesis of Isomeric 7‐Methyl‐7H‐ and 8‐Methyl‐8H‐pyrazolo(4,3‐d)azolopyridazines. (1989) (0)
C-Nitration of Pyrazoles with Nitric Acid (2002) (0)
THE REACTION OF 2-AMINOPYRIDINES WITH ETHYL-DIAZOACETATE (1974) (0)
From Prop-2-enenitriles and Hydrazine (2002) (0)
Regio‐ and Stereoselective One‐Pot Synthesis of Unknown Oxazoline‐Fused Pyridazines by “Michael Addition—Pyridazine Cyclization—Oxazoline Cyclization” Cascade Reactions of 4‐Chloro‐1,2‐diaza‐1,3‐butadienes with 3‐Dimethylaminopropenoates. (2008) (0)
Regio- and Stereoselective Cycloaddition and Further Transformations of Azomethine Imine Derivatives of Fused [1,2,4]Triazines. (2005) (0)
From 3,4-Bis(arylhydrazono)dihydrofuran-2(3)-ones (2002) (0)
From β-Diketones and Acylhydrazines (2002) (0)
From ,-Acetals of 1,3-Dicarbonyl Compounds and Hydrazines (2002) (0)
Synthesis and Transformations of Ethyl 3-Formyl-1H-indole-2-carboxylate. Preparation of Aplysinopsin and β-Carboline Thiohydantoin Analogues. (2006) (0)
From Active Methylene Compounds and Diazonium Salts (2002) (0)
The Synthesis and Transformations of Methyl 2-[2,2-Bis(ethoxycarbonyl)ethenyl]amino-3-dimethylaminobut-2-enoate. The Synthesis of 3-Amino-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-ones. (1998) (0)
Methyl 2-Benzoylamino-3-dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. An Attempt to Prepare Benzoylamino Substituted Azolo- and Azinopyrimidines with a Bridgehead Nitrogen Atom. (1990) (0)
Methyl (Z)‐2‐[(Benzyloxycarbonyl)amino]‐3‐dimethylaminopropenoate in the Synthesis of Heterocyclic Systems. Synthesis of (Benzyloxycarbonyl)amino Substituted Fused Pyrimidinones. (1999) (0)
Contribution to the Structm · e of 2 , 5-Dimercapto-1 , 3 , 4-thiadiazole and Related Compounds " ' (2018) (0)
SYNTHESIS OF S-TRIAZOLO(1,5-B)PYRIDAZINE 3-OXIDE DERIVATIVES (1976) (0)
Synthesis of 3-(alpha- and beta-D-arabinofuranosyl)-6-chloro-1,2,4-triazolo[4,3-b]pyridazine. (2003) (0)
From 3,3-Dialkoxyalkan-1-ones and Hydrazines (2002) (0)
Synthesis of Thioaplysinopsin Analogues Derived from 5‐Dimethylaminomethylidene‐2‐thioxo‐1,3‐thiazol‐4‐ones. (2008) (0)
Synthesis from Thiazoles (2002) (0)
Transformations of N‐Heteroarylformamidines and N‐Heteroarylformamidine Oximes. (1986) (0)
Synthesis from Tetrazoles (2002) (0)
From [3-(Ethoxycarbonyl)-3-hydrazono-2-oxopropyl]dimethylsulfonium Salts (2002) (0)
Pyridazines, LXXXVI. Some Mesoionic Mercaptoazolopyridazines (1976) (0)
From 3,3-Bis(methylsulfanyl)prop-2-en-1-ones and Hydrazine (2002) (0)
From 3-Hydrazonoalkanoic Acid Derivatives (2002) (0)
From 5-Lithio-1-(4-methoxybenzyl)-1-pyrazole and Electrophiles (2002) (0)
From 3-(Diethoxymethyl)-2-ethoxytetrahydrofuran (2002) (0)
Amino Acids in the Synthesis of Heterocyclic Compounds. Transformations of Thiazolones into Imidazole Derivatives. (2010) (0)
Simple and Convenient Preparation of New Highly Protected Aziridines Fused with Pyrroline Rings. (2003) (0)
1,3-Dipolar Cycloadditions of (4R*,5R*)-1-Alkylidene-4- (benzoylamino)-5-phenyl-3-pyrazolidinon-1-azomethine Imines. (2008) (0)
From Arylhydrazones of Methyl Ketones by Acylation of the Methyl Group (2002) (0)
[2 + 2] Cycloadditions of Electron‐Poor Acetylenes to (5Z)‐5‐[(Dimethylamino)methylene]imidazolidine‐2,4‐diones. (2009) (0)
Synthesis and Cycloaddition of Azomethine Imines containing [1,2,4]triazine ring (2003) (0)
A Simple Stereoselective One-Pot Conversion of Compounds with a Dimethylaminomethylene Group into Enol Esters. (2001) (0)
Addition of Organic Groups (2002) (0)
Sulfur Compounds of Pyridazines (2008) (0)
Formation of Benzocyclobutenes from Substituted Oxocycloocta-2,8-diene-1,2-dicarboxylates. (2016) (0)
Synthesis from 1,3-Oxazines (2002) (0)
From Cyanoketene ,-Acetals or ,-Acetals and Hydrazine (2002) (0)
From Four-Membered Heterocycles (2002) (0)
From 3-Acyldihydrofuran-2(3)-ones (2002) (0)
By Dehydration of 2-(Arylsulfonyl)-Substituted 2,3-Dihydropyrazol-5-ols and 2,3-Dihydropyrazol-5-amines (2002) (0)
1,3-Dipolar Cycloadditions of 2-Diazobutane, Diazophenylmethane and 1- Diazo-1-Phenylethane to Azolopyridazines. The Isolation of Some Primary and Rearranged Cycloadducts and Their Transformations into Substituted Pyrazolo(4,3-d)azolopyridazines. (1991) (0)
From Furan-3(2)-ones (2002) (0)
Remarkable karstologists of Vrhnika (Slovenia) (2009) (0)
Addition of Heteroatoms (2002) (0)
From Nitrile Imines and 1,3-Dicarbonyl Compounds (2002) (0)
1,3‐Dipolar Cycloaddidtions of Diazoalkanes to Heteroaromatic Systems. New Simple Syntheses of C‐Nulceosides. (1994) (0)
New Syntheses and Transformations of Some Pteridines and Pteridine 3-Oxides (1983) (0)
Synthesis of Heterocycles from Alkyl 3-(Dimethylamino)propenoates and Related Enaminones (2004) (0)
By Formation of One N—N Bond (2002) (0)
The Reaction of 2-Ethoxycarbonyl-3-isothiocyanatopyridine with α-Amino Acids. The Synthesis of 3-Substituted 2-Thiooxo-2,3-dihydropyrido(3,2-d)pyrimidin-4(3H)-ones. (1990) (0)
Studies in the Cycloproparene Series. 1,3-Diradical Intermediates in 3H-Pyrazole Photolyses: 1,4-Addition to Dienes. (1986) (0)
Synthesis of 3-(4-Oxo-4H-quinolizinyl-3) and 3-(4-Oxo-4H-pyridino[1,2-a]pyrimidinyl-3) Substituted Lactic Acid Derivatives. (2001) (0)
Aromatization by Cleavage of the Alkylidene Structural Element (2002) (0)
From 3-(Alkylsulfanyl)-2-[(alkylsulfanyl)methyl]alk-2-en-1-ones and Hydrazine (2002) (0)
From 1,3-Dienes, Alk-1-en-3-ynes, or Alka-1,3-diynes and Hydrazine (2002) (0)
HETEROCYCLES. CLVII. OXIDATIVE TRANSFORMATIONS OF SOME HETEROCYCLIC HYDRAZONES WITH LEAD TETRAACETATE (1977) (0)
[2 + 2] Cycloaddition of Electron-Poor Acetylenes to Enaminones, Enamino Esters and Related Systems. Rearrangements and Ring-Expansion Reactions (2014) (0)
Synthesis and Structure of Ethyl 2-[2,2-Bis(ethoxycarbonyl)ethenyl] amino-3-(substituted)aminopropenoates, Intermediates in the Synthesis of Heterocyclic Systems. (1998) (0)
The Synthesis of Ethyl 2-[(2,2-Dibenzoyl)ethenyl]amino-3-dimethylaminopropenoate and Its Application to the Synthesis of Fused 3-Aminopyran-2-ones and 3-Aminoazolo- and -azinopyrimidin-4(4H)-ones. (1999) (0)
Synthesis from 1,2,6-Thiadiazines (2002) (0)
Amino Acids in the Synthesis of Heterocyclic Systems. A Novel Synthesis of Fused Pyridinones. (2010) (0)
The Tautomerism of Heterocycles. Six-Membered Heterocycles. Part 1. Annular Tautomerism (2002) (0)
Reaction of Methyl 2‐Benzoylamino‐3‐dimethylaminopropenoate with Heterocyclic Hydroxy Compounds. The Synthesis of Fused Pyranoazines. (1993) (0)
A Simple One-Step Synthesis of Substituted Methyl 2-Benzoylamino-3-arylaminopropenoates, Intermediates in the Preparation of Substituted Arylaminoalanines. (1990) (0)
CCDC 171724: Experimental Crystal Structure Determination (2003) (0)
The Synthesis of Ethyl 2-(2-Cyano-2-ethoxycarbonylethenyl)amino-3-dimethylaminopropenoate. The Synthesis of Substituted Aminoazolo-, Aminoazinopyrimidinones and 2H-1-Benzopyran-2-ones. (2010) (0)
The Synthesis of β-Heteroarylamino-α,β-dehydro-α- amino Acid Derivatives via Thiazolones (1995) (0)
From Alk-2-ynohydrazides (2002) (0)
CYANOAMINO COMPOUNDS IN SYNTHESIS. SYNTHESES OF SOME HETEROCYCLES (1983) (0)
ADDITION VON 6‐AZIDO‐TETRAZOLO(1,5‐B)PYRIDAZIN AN ACRYLATE (1972) (0)
HETEROCYCLES PART 101, SYNTHESES AND ISOMERIZATIONS OF SOME ALLYLTHIO NITROGEN HETEROCYCLES (1974) (0)
PYRIDAZINES PART 71, ADDITION OF AZIDOAZOLOPYRIDAZINES TO TRIPLE BONDS (1975) (0)
Synthesis of (2S)-2-(Benzoylamino)-3-(heteroaryl)propyl Benzoates. (2000) (0)
Synthesis of azolo-1,2,4-triazines from heterocyclic diazo compounds (1977) (0)
From Furanosylalkynes or 1-Diazo-1-furanosylalkanes (2002) (0)
HETEROCYCLES. CLX. SYNTHESIS OF S-TRIAZOLO(1,5-C)PYRIMIDINE (1977) (0)
Recent Advances in the Pyridazine Series: New Syntheses of Pyridazines, Azatryptophanes and C-Nucleosides (1997) (0)
Synthesis of Tetrahydropyrazolo[1,5-c]pyrimidine-2,7(1H,3H)-diones. (2013) (0)
Enamino esters in the synthesis of heterocyclic systems. Transformation of diethyl acetone-1,3-dicarboxylate into poly- substituted 1,2,7,8-tetrahydro-2,7-naphthyridine-4-carboxylates (2010) (0)
Cross-Coupling Reactions at Position 4 (2002) (0)
From Phosphonium-Substituted Azines (2002) (0)
[Experiments on the preparation of some sulfonamides of the 1,3,4-thiadiazol-and pyridazine series]. (1966) (0)
From 1,2,6-Thiadiazines and Hydrazine Hydrate (2002) (0)
By Addition of Diazoalkane (2002) (0)
From Dimethyl Diazomalonate and Dimethyl Malonate (2002) (0)
1,3‐Dipolar Cycloaddition of 2‐Diazopropane to 2‐Methyl‐6‐ phenylpyridazin‐3(2H)‐one. Formation of Pyrazolo(3,4‐d)pyridazine Derivatives. (1991) (0)
A Novel Synthesis of Tetrahydropyrazolo[1,5-c]pyrimidine-2,7(1H,3H)-diones. (2014) (0)
HETEROCYCLES. CXXXV. REACTIONS OF SOME DIAZOAZOLES WITH REACTIVE METHYLENE AND OTHER GROUPS (1976) (0)
PYRIDAZINES PART 65, REACTIONS OF SOME 1-PHENACYLAZOLOPYRIDAZINIUM HALIDES WITH 2,3-DIPHENYLCYCLOPROPENONE, -THIONE, OR HYDRAZINE (1975) (0)
From 1,3-Substituted 3-Arylhydrazonoprop-1-enes by Oxidative Cyclization (2002) (0)
Synthesis from 1,3,4-Oxadiazoles (2002) (0)
Stereoselective ring opening of dimethyl 5-aryl-2,3-dihydro-3,3 dimethyl-1-oxo-1H,5H-pyrazolo[1,2–a]pyrazole-6,7-dicarboxylates with hydrazine hydrate. Synthesis of rel-(4'R,5'S)-3-[5-aryl-3,4bis (hydrazino-carbonyl)]-4,5-dihydro-1H-pyrazol-1-yl)-3-methylbutanohydrazides (2002) (0)
From 3-Haloalk-2-en-1-ones and Hydrazine (2002) (0)
Alkylation of the Hydroxy Group (2002) (0)
Reaction of rel-(4R,5R)-4-Benzoylamino-5-phenyl-3-pyrazolidinone with Aliphatic 1,3-Dicarbonyl Compounds. A ′Ring Switch′ Synthesis of rel-(2R,3R)-3-Phenyl-3-(pyrazolyl-1)alanine Esters. (1999) (0)
A New Synthesis of C‐Nucleosides by 1,3‐Dipolar Cycloaddition of Chiral Azomethine Imines to Methyl Acrylate. The Stereoselective Synthesis of Fused Pyrazoles. (1992) (0)
From Alk-2-ynenitriles and Hydrazine (2002) (0)
Synthesis of Isomeric 3-Aminopyridopyrimidin-4 ( 3 H ) ones * (2018) (0)
CCDC 768094: Experimental Crystal Structure Determination (2010) (0)
Preparation of Polysubstituted Isochromanes by Addition of ortho‐Lithiated Aryloxiranes to Enaminones. (2014) (0)
Rearrangements and Ring Contractions of Heteroaryldiazonium Salts and Azides (2003) (0)
Ring Contractions of 3-Azido-4H-quinolizin-4-ones and 3-Azido-4H-azino[1,2-x]pyrimidin-4-ones: A Novel Approach to 3-Aminoindolizines and Their Aza Analogues. (2008) (0)
APPLICATION OF AZA-TRANSFER TO ORGANIC COMPOUNDS. REACTIONS BETWEEN HETEROCYCLIC DIAZO COMPOUNDS AND HYDRAZINES (1978) (0)
POTENTIAL AMBIFUNCTIONALITY OF 2-AZIDOPYRIDO(1,2-A)PYRIMIDIN-4-ONE (1975) (0)
From Active Methylene Compounds and Tosyl Azide (2002) (0)
1,3-Dipolar Cycloaddition of 2-Diazopropane to Coumarin. The Synthesis of Derivatives of (1)Benzopyrano(4,3-c)pyrazol-4(3H)-one and (1)Benzopyrano(3,4-c)pyrazol-4(1H)-one. (1988) (0)
Transformations of Alkyl 2‐(2,2‐Disubstituted‐ethenyl)amino‐3‐dimethylaminoprop‐2‐enoates: Synthesis of Alkyl 3,4‐Disubstituted‐ and Alkyl 1‐Acyl‐3,4‐disubstituted Pyrrole‐2‐carboxylates. (1999) (0)
By Dehydration of 4,5-Dihydropyrazol-4-ols (2002) (0)
Synthesis from 1,3,4-Thiadiazepines (2002) (0)
Transformations of Methyl 2-(2,2-Disubstituted-ethenyl)amino-3-dimethylaminopropenoates. The Synthesis of Methyl 1-Heteroaryl-1H-imidazole-4-carboxylates. (1999) (0)
Stereoselective Synthesis of (1R,5S)-4-[(E)-Alkylidene]-1,8,8-trimethyl-2-oxa- bicyclo[3.2.1]octan-3-ones Synthesis of (1R,5S)-4-[(E)-Alkylidene]-1,8,8-trimethyl-2-oxabicyclo[3.2.1]octan-3-ones (2005) (0)
SYNTHESES AND REACTIVITY OF SOME 1,2,4-THIADIAZOLOAZINES AND 1,2,4-THIADIAZOLOAZOLES (1979) (0)
By Dehydration of 4-(Phenylsulfonyl)-4,5-dihydropyrazole Derivatives (2002) (0)
HETEROCYCLES. CLXI. SYNTHESIS AND CHEMICAL REACTIVITY OF SOME 1,2,4-THIADIAZOLO(2,3-A)PYRIMIDINES AND RELATED COMPOUNDS (1977) (0)
From Malonaldehyde and Derivatives and Hydrazines (2002) (0)
Stereoselective Synthesis of (1R,5S)‐4‐[(E)‐Alkylidene]‐1,8,8‐trimethyl‐2‐oxabicyclo [3.2.1]octan‐3‐ones. (2005) (0)
Photochamical and Thermal Transformations of Some Heterocyclic Diazoketons (1978) (0)
From 1,3-Dicarbonyl Compounds (and Acetals Thereof) and Hydrazines (2002) (0)
3-Benzoyl-2-ethoxycarbonylvinyl-1 and 2-Benzoylamino-2- methoxycarbonylvinyl-1 as N-Protecting Groups in Peptide Synthesis. Their Application in the Synthesis of Dehydropeptide Derivatives Containing N-Terminal 3-Heteroarylamino-2,3-dehydroalanine. (1997) (0)
Transformation of Amino Acids into Nonracemic 1-(Heteroaryl)ethanamines by the Enamino Ketone Methodology. (2006) (0)
From 3-Oxocarbodithioic Esters or 3-Oxocarbothioamides and Hydrazine (2002) (0)
Unusual Reactions of 5,5-Dimethyl-2-(indenyl-2)-3-pyrazolidinone with Acetylenedicarboxylates. (2000) (0)
A Tribute to Prof. Miha Tišler (2005) (0)
Synthesis from 1,3-Dioxanes (2002) (0)
From Malonic Acid Derivatives and 1-Acetyl-2-arylhydrazines (2002) (0)
HETEROCYCLEN 92. MITT. SYNTH. ISOMERER 3-AMINO-3H-PYRIDO-PYRIMIDINONE-(4) (1972) (0)
From Acrylic Acid Derivatives and Hydrazine (2002) (0)
The Synthesis of Derivatives of New Tetracyclic Heterocyclic Systems Pyrazolo‐bis‐azolopyridazines. (1989) (0)
Synthesis and Transformation of Methyl 2‐(6‐Hydroxy‐2‐phenylpyrimidin‐4‐yl)acetate: Simple Preparation of Pyrimidines with Heterocyclic Substituents. (2008) (0)
PYRIDAZINES PART 62, TETRAZOLO-AZIDO EQUILIBRIA OF TETRAZOLO(1,5-B)PYRIDAZINES (1974) (0)
THE PHOTO CYCLOADDITION OF ALKENES TO S-TRIAZOLO(4,3-B) AND (2,3-B)PYRIDAZINES (1974) (0)
Synthesis from Pyrimidines (2002) (0)
Catalytic Hydrogenation of 3‐Benzyloxycarbonylaminoazino[1,2‐x]azin‐4‐ones. A Facile Access to 3‐Amino‐6,7,8,9‐tetrahydro‐4H‐pyrido[1,2‐a]pyridin‐4‐ones and 3‐Amino‐6,7,8,9‐tetrahydro‐4H‐azino[1,2‐x]pyrimidin‐4‐ones. (2001) (0)
HETEROCYCLES PART 527, ACTION OF SULFUR ON SOME HETEROCYCLIC COMPOUNDS, FORMATION OF THIOAMIDES, OXIDATIVE CYCLIZATION AND THIATION (1975) (0)
From Alkyl 2-Acyl-3-alkoxyprop-2-enoates and Hydrazine (2002) (0)
[2 + 2] Cycloadditions of Electron-Poor Acetylenes to Endocyclic Enaminones: Ring-Expansion Reactions. (2015) (0)
Conversions of N-Heteroarylformamidines and N-Heteroarylformamidoximes: Novel Syntheses of Bi- and Polycyclic Systems (1988) (0)
Isolation of Methyl (RS)‐1‐tert‐Butoxycarbonyl‐3‐cyanomethyl‐1,2‐dihydro‐2‐oxo‐5H‐pyrrole‐5‐ carboxylate, the Key‐Intermediate in Base‐Catalyzed Formation of Racemic Products by 1,3‐Dipolar Cycloadditions to Methyl (S)‐1‐tert‐Butoxycarbonyl‐3‐ [(E)‐cyanomethylidene]‐2‐pyrrolidinone‐5‐carboxylate. (2003) (0)
From α-Cyano Ketones and Semicarbazides and Thiosemicarbazides (2002) (0)
From 3-Aminoprop-2-enethioamide and Hydrazine (2002) (0)
3-(Dimethylamino)propenoates and Related Compounds in the Synthesis of Heterocyclic Systems and Heterocyclic Amino Acids (2001) (0)
By Formation of One N—C and Two C—C Bonds (2002) (0)
From 2-Alkoxy- or 2-Hydroxyfuran-3(2)-ones (2002) (0)
THE CRYSTAL AND MOLECULAR STRUCTURE OF 3-(2-PYRIDYL)IMIDAZO(1,5-A)PYRIDINE (1981) (0)
By Formation of One N—C and One C—C Bond (2002) (0)
From Three-Membered Hetero- and Carbocycles (2002) (0)
REACTIONS OF N-HETEROARYLFORMAMIDE OXIMES AND N-HETEROARYLACETAMIDE OXIMES WITH N,N-DIMETHYLFORMAMIDE DIMETHYL ACETAL. SYNTHESIS OF 2-METHYL-S-TRIAZOLO(1,5-X)AZINES AND N-METHYLCYANOAMINOAZINES (1983) (0)
CARBON-13 NMR INVESTIGATION OF THE PROTONATION AND QUATERNIZATION OF AZOLOAZINES WITH A BRIDGEHEAD NITROGEN (1977) (0)
2-Substituted 3-Dimethylamino- and -3-cyanopropenoates in the Synthesis of Heterocyclic Systems (2000) (0)
Pyridazines. Part 46. Preparation of Azolopyridazinecarboxylic Acids. (1990) (0)
The Synthesis and Transformations of Ethyl (Z)‐2‐(2,2‐Bis( ethoxycarbonyl)vinyl)amino‐3‐dimethylaminopropenoate, a New Reagent in the Synthesis of Heterocyclic Compounds. (1995) (0)
Two substituted pyrazolo[1',2':1,2]pyrazolo[4,3-d]tetrazolo[1,5-b]pyridazines (1994) (0)

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What Schools Are Affiliated With Branko Stanovnik?

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University of Ljubljana