Valentin Koptyug

Valentin Koptyug's AcademicInfluence.com Rankings

Valentin Koptyug

Chemistry

#366

World Rank

#695

Historical Rank

Physical Chemistry

#962

World Rank

#1035

Historical Rank

chemistry Degrees

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Chemistry

Why Is Valentin Koptyug Influential?

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According to Wikipedia, Valentin Afanasyevich Koptyug was a Soviet Belarusian scientist, specializing in physical and organic chemistry. Biography Valentin Koptyug was born in 1931 in Yukhnov in the family of Afanasy Koptyug, who was director of the local communication department, and Nadezhda Koptyug, who was a telegrapher. When young Koptyug was studying in school, his family had to evacuate because of Great Patriotic War. In 1949 he finished school in Samarkand and graduated from D. Mendeleev University of Chemical Technology of Russia in 1954 in Moscow. In 1957, Koptyg completed postgraduate studies at this institution. He worked at the Mendeleev University from 1957 to 1959.

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Valentin Koptyug'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

Mathematics of the USSR-Izvestiya (2005) (39)
Arenonium ions (structure and reactivity) (1974) (15)
The labelling via saturation of a spin system in study of mechanisms of moderately rapid reversible reactions - an example (1969) (12)
A computer search system for chemical structure elucidation based on low-resolution mass spectra (1981) (12)
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACIDIC AGENTS. XII: MECHANISM OF CONDENSATION OF 1-NAPHTHOL DERIV ATIVES WITH AROMATIC COMPOUNDS (1993) (10)
Carbon-13 nmr spectra and excess positive charge densities for mesitylenonium ion (1968) (8)
Investigation of the process of decomposition in a detonation wave by the isotope method (1988) (8)
Synthesis of isomeric pairs of imidazole N-oxides (1965) (7)
Sustainable Development of the Lake Baikal Region (1996) (7)
Mass spectra of isomeric monoalkylanisoles and monoalkylphenols with straight alkyl chains (1969) (7)
Automerization of naphthalene - a correction (1968) (6)
MIGRATION OF METHYL GROUP IN HEPTAMETHYLBENZENONIUM ION: A NEW ROUTE TO PERDEUTEROHEXAMETHYLBENZENE (1965) (6)
Heptamethylcyclohexadienyliron tricarbonyl cation (1968) (5)
Aliphatic carboxylic acids and ketones from sapropelitic coals (1990) (5)
Isomeric 1,2,3,4,5,6-hexamethylbicyclo[3,1,0]hexenyl cations and their thermal rearrangements (1969) (5)
On valence state of “aliphatic” carbon atom in arenonium ions. (1967) (5)
Electronic structure of molecules of substituted benzenes by X-ray spectroscopy. I. Nitrobenzene (1988) (3)
Main Factors Necessitating Mankind’s Transition to Sustainable Development (1996) (2)
Complexes of aromatic hydrocarbons with metal halides and hydrogen halides (1969) (2)
The relative migration tendencies of p-substituted phenyl groups in carbonium ion doubly-degenerate rearrangements (1970) (2)
Migration of the cyclopropane ring in endo-H-1,2,3,4,5,6-hexa-methylbicyclo[3,1,0]hexenyl cation (1969) (2)
Academician Kolmogorov Andrei Nikolaevich - (obituary) (1988) (2)
The proton magnetic resonance spectra of methylated biphenyls (1967) (1)
Analysis of influence of substituents on electrochemical oxidation and reduction potentials of aromatic and heterocyclic compounds, on the basis of the dependence of electronic effects of the substituents in π-systems on the character of the π-molecular orbitals (1995) (1)
A Network of Research Centres in Siberia, as a Basis for Multi-Disciplinary International Scientific Collaboration (1995) (1)
Use of the computer for the solution of structural problems in organic chemistry by the methods of molecular spectroscopy (1977) (1)
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACIDIC AGENTS. X: ROTATIONAL ISOMERISM IN THE SERIES OF 2-METHOXY -1-NAPHTHALENONIUM IONS (1992) (1)
Mechanism of the isomeric transformation of hydroxyhexamethylbenzolonium ions (1967) (1)
UV, IR, AND PMR spectra of hydroxyhexamethylbenzenonium ions (1970) (1)
Relative migratory aptitude of substituents in 1-R-1,2,3,4,5,6-hexamethylbenzenium ions (1968) (1)
1,1,2-Trimethylpyrenonium ion, a new member of degenerate carbonium ions (1974) (1)
Chemistry of α -hydroxylaminooximes (1966) (1)
Degenerate rearrangement of 2H+-biphenylenonium ion (1978) (1)
Proof of the presence of a cyclopropane ring in the product of the photoisomerization of the 1, 2, 3, 4, 5, 6-hexamethylbenzenonium ion (1969) (1)
CONVERSION OF POLYALKYLATED CYCLOHEXADIENONES TO ALKYLPHENOLS IN THE PRESENCE OF BASES (1976) (0)
Chemistry ofα-hydroxyamino oximes (1970) (0)
Reaction of polyalkylbenzenes with nitrating agents in HSO3F (1973) (0)
Rapid shift of the methyl group in the heptamethylbenzenonium ion (1965) (0)
SYNTHESIS OF POTENTIAL ANTIOXIDANTS CONTAINING 4‐HYDROXY‐2,3,5,6‐TETRAMETHYLBENZYL BROMIDE (1976) (0)
The mechanism of ring contraction in the photolysis of o-quinonediazides (1976) (0)
C-13-KERNRESONANZSPEKTREN VON 1-X-HEXAMETHYL- UND 1-X-4-HYDROXY-PENTAMETHYLBENZOLONIUM-IONEN (1974) (0)
UMLAGERUNGEN VON ENDO-5-HALOGEN-1,2,3,4,5,6-HEXAMETHYL-BICYCLO(2,1,1)HEXENYL-KATIONEN (1974) (0)
EXAMPLE OF THE REARRANGEMENT OF A BENZYL TYPE ION INTO A COMPOUND OF THE TROPONE SERIES (1981) (0)
UMLAGERUNG STEREOISOMERER 1,2,3,4,5,6-HEXAMETHYL-BICYCLO(3,1,0)HEXENYL-KATIONEN (1971) (0)
CARBON‐13 NMR SPECTRA OF NAPHTHALENONIUM IONS (1976) (0)
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACIDIC AGENTS. IV. CONDENSATION OF SUBSTITUTED RESORCINOLS WITH BENZENE AND CHLOROBENZENE (1980) (0)
Kinetic and thermodynamic control during C-protonation of 1-naphthols (1974) (0)
SOME CHARACTERISTICS OF REARRANGEMENTS OF CARBOCATIONS (1981) (0)
A new conversion of N-(1-oximino-1,2,3,4-tetrahydronaphthyl-2)-hydroxylamine (1964) (0)
ROLE OF ORBITAL ORIENTATION IN REARRANGEMENTS OF CARBO CATIONS. I. APPARENT PARADOX OF THE DEGENERATE REARRANGEMENT OF 4,5,9,9,10-PENTAMETHYLPHENANTHRENONIUM ION (1979) (0)
SELECTIVE FUNCITONALIZATION OF AROMATIC COMPOUNDS. I, ORTHO-AMINOALKYLATION OF PHENOL AND O-TERT-BUTYLPHENOL (1990) (0)
Utilization of computers in molecular spectroscopy (1971) (0)
Strategy of the Siberian Science in Studying the Russian North (1996) (0)
CONDENSATION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACID AGENTS. III. CONDENSATION OF QUINOLINE AND ITS CHLORO DERIVATIVES WITH RESORCINOL (1980) (0)
REARRANGEMENTS OF PENTAMETHYLNAPHTHALENONIUM IONS. RELATION BETWEEN CARBONIUM ION STRUCTURE AND RATE OF THE 1,2-SHIFT OF THE METHYL GROUP (1979) (0)
Infrared spectra of protonated aromatic hydrocarbons (1964) (0)
Dependence of the electronic effects of substituents in. pi. systems on the character of the. pi. -molecular orbitals. VIII. The parametrization of simple molecular-orbital calculations of the effect of substituents on the energies of the. pi. levels in aromatic molecules (1986) (0)
POLYMETHYLNAPHTHALENE-TYPE DICATIONS (1977) (0)
Quantitative description of the reactions of aromatic compounds with electrophilic reagents. VII. Analysis of the protonation of polymethylated phenols (1986) (0)
The mechanism of dichlorobenzene isomerization (1964) (0)
Bridging Gaps Among Scientific Disciplines. Paper Presented on IIASA's 20th Anniversary (1994) (0)
CHEMISTRY AND ECOLOGY Proceedings of the Scientific Session of the Division of General Chemistry and Chemical Engineering of the Academy of Sciences of the USSR, Moscow, 27-28 February 1989 (1991) (0)
Reaerangements in a series of polymethylbenzenonium ions (1966) (0)
Dependence of the electronic effects of substituents in. pi. systems on the character of the. pi. -molecular orbitals. VI. description of the potentials of the electrochemical oxidation of substituted benzenes (1985) (0)
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACID AGENTS. V. REACTIONS OF CHLORO-SUBSTITUTED NAPHTHOLS WITH BENZENE (1980) (0)
C&EN Talks With... (1977) (0)
Reaction of phenols with alcohols on aluminum oxide: II. The mechanism of hexamethylbenzene formation from phenol and methyl alcohol (1969) (0)
SYNTHESIS OF TETRAMETHYLANTHRANILIC ACID (1976) (0)
The structure of the complex of mesitylene with aluminum bromide and hydrogen bromide (1963) (0)
NEW METHOD OF SYNTHESIZING POLYMETHYLATED HYDROCARBONS OF NAPHTHALENE, PHENANTHRENE, AND ANTHRACENE SERIES (1977) (0)
O,C‐Diprotonated Forms of α,β‐Unsaturated Ketones. (1992) (0)
CONVERSION OF PENTAMETHYLPHENOL TO 2,3,4,6,7‐PENTAMETHYLTROPONE (1979) (0)
Dependence of the electronic effects of substituents in. pi. systems on the character of the. pi. -orbitals. X. Effect of substituents on the electrochemical oxidation potentials of polycyclic aromatic compounds (1987) (0)
Structure and Reactivity of Carbocations (1994) (0)
Dependence of the electronic effects of substituents in. pi. systems on the character of the. pi. -molecular orbitals. XII. Description of the vertical ionization potentials of substituted ethylenes and acetylenes (1987) (0)
QUANTITATIVE DESCRIPTION OF THE DEGENERATE 1,2-SHIFTS OF A HYDROGEN ATOM AND METHYL GROUP IN ALIPHATIC AND ALICYCLIC CARBOCATIONS (1991) (0)
Arenonium ions' corresponding to the halogenation reactions of compounds of the naphthalene series (1974) (0)
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACIDIC AGENTS. XI: DIPROTONATION OF DERIVATIVES OF 2-NAPHTHOL IN STRONG ACIDS (1992) (0)
Dependence of substituent electronic effects in /pi/-systems on the nature of molecular orbitals. XIII. Substituent effects in benzene radical-cations and radical-anions and analysis of the electrochemical reduction potentials of substituted benzenes (1988) (0)
REACTION OF PHENOLS WITH LEWIS ACIDS. XII. STUDY OF THE FORMATION OF COMPLEXES OF HEXAMETHYLCYCLOHEXADIEN-2,5-ONE, PENTAMETHYLPHENOL, AND DURENOL WITH ALUMINUM BROMIDE BY IR AND UV SPECTROSCOPY (1979) (0)
Dications of the polymethy lnaphthalene series (1976) (0)
New books (1976) (0)
Quantitative description of distribution of isomers formed in reactions of substituted benzenes with electrophilic reagents (1981) (0)
Retrieval and treatment of molecular spectroscopy data with the aid of the Minsk-32 computer (1975) (0)
QUANTITATIVE DESCRIPTION OF ISOMERIC TRANSFORMATIONS OF SUBSTITUTED AROMATIC COMPOUNDS IN THE PRESENCE OF ACID CATALYSTS. IV. ISOMERIZATION OF P-CRESOL AND 3,4-XYLENOL IN THE HYDROGEN FLUORIDE-BORON FLUORIDE SYSTEM (1979) (0)
ROLE OF ORBITAL ORIENTATION IN REARRANGEMENTS OF CARBO CATIONS. II. GENERATION OF 4,5,9,9,10‐PENTAMETHYLPHENANTHRENONIUM ION AND A PROTON NMR STUDY OF ITS REARRANGEMENT (1980) (0)
DEGENERATE REARRANGEMENT OF THE 9,9-DIETHYL-10-METHYLPHENANTHRENONIUM ION. RELATIVE MIGRATIONAL ABILITIES OF THE ETHYL AND METHYL GROUPS (1976) (0)
REPLACEMENT OF A METHYL GROUP IN THE BROMINATION OF SOME METHYLATED PHENOLS (1976) (0)
Structural characteristics of some diphenyl oxide derivatives (1970) (0)
DEGENERATE REARRANGEMENT OF 1,1,2-TRIMETHYLACENAPHTHYLENONIUM ION (1977) (0)
DEPENDENCE OF THE ELECTRONIC EFFECTS OF SUBSTITUENTS IN PI SYSTEMS ON THECHARACTER OF THE PI MOLECULAR ORBITALS. XIV, THE EFFECTS OF SUBSTITUENTS O N THE ACID-BASE EQUILIBRIA IN ANILINES AND PHENOLS (1990) (0)
Conversion of 9-tert-butyl-9-fluorenol into the 9,9,10-trimethylphenanthrenonium ion (1969) (0)
REACTION OF PHENOLS WITH LEWIS ACIDS. XIII. CONVERSION OF POLYMETHYLATED PHENOLS TO 2,3,4,6,7-PENTAMETHYLTROPONE (1979) (0)
MECHANISM AND KINETICS OF A DEGENERATE REARRANGEMENT OF 1-BROMO-1,2,3,4,5,6-HEXAMETHYLBENZENONIUM ION (1976) (0)
Formation of c9h7+ ions in the mass spectra of 2-methyl-, 2-chloromethyl-, and 2-hydroxymethylnaphthalenes (1977) (0)
Conversion of polyalkylated cyclohexadienones to alkylphenols with bases (1976) (0)
ON THE DECOMPOSITION OF 1- AND 2-METHYLNAPHTHALENES FROM ELECTRON IMPACT (1976) (0)
9-ALKYL-FLUORENYL-(9)-KATIONEN (1972) (0)
STABLE CARBO CATIONS FROM TERPENOIDS. I. GENERATION OF CARBO CATIONS FROM NATURAL SESQUITERPENES - HEXAHYDRONAPHTHALENE DERIVATIVES (1981) (0)
PMR spectra of benzenonium ions. Magnetic susceptibility anisotropy of the protonated benzene ring (1973) (0)
Diprotonation of polymethylnaphthalenes (1974) (0)
Iron tricarbonyl complexes of hydroxypolymethylbenzolonium ions (1970) (0)
The use of “labeling by saturation” in the study of the mechanism and kinetics of the rearrangement of the heptamethylbenzenonium ion (1971) (0)
CREATION AND CAPABILITIES OF COMPUTERIZED DATA BANKS CONTAINING INFORMATION ON CHEMICAL STRUCTURES AND PROPERTIES (1981) (0)
Quantitative description of reactions of aromatic compounds with electrphilic reagents. VIII. Analysis of the parameters of the hyperbolic equations describing the effect of substituents on the reactions of aromatic compounds with various reagents (1987) (0)
Fragmentation of α-substituted 2-methylnaphthalenes under electron impact (1978) (0)
Complexes of aromatic hydrocarbons with metal halides and hydrogen halides: Communication 5. Complexes of decamethyl- and 2, 2?, 4,4?, 6, 6?-hexamethylbiphenyls with hydrogen chloride and aluminum chloride (1969) (0)
REACTIONS OF PENTAMETHYLBENZENE IN THE PRESENCE OF NITRATING AGENTS IN FLUOROSULFURIC ACID (1977) (0)
The use of mass spectrometry to determine the position of the label in naphthalene-C 13 (1970) (0)
Convresion of pentamethylphenol into 2,3,4,6,7-pentamethyltropone (1978) (0)
Vul Benzion Moiseyvich - obituary (1985) (0)
O,C-DIPROTONATED FORMS OF ALPHA , BETA -UNSATURATED KETONES (1991) (0)
ANALYSIS OF THE CARBON AND PROTON MAGNETIC RESONANCE SPECTRA OF METHYLBENZENONIUM IONS (1976) (0)
Fixation of tautomeric forms of phenols by formation of complexes with aluminum halides (1968) (0)
REACTION OF PHENOLS AND THEIR DERIVATIVES WITH AROMATIC COMPOUNDS IN THE PRESENCE OF ACID AGENTS. I. CONDENSATION OF PHLOROGLUCINOL AND ITS METHYL ETHERS WITH BENZENE AND ANISOLE (1977) (0)
DEPENDENCE OF THE ELECTRONIC EFFECTS OF SUBSTITUENTS IN PI SYSTEMS ON THENATURE OF THE PI MOLECULAR ORBITALS. XVI: EFFECT OF SUBSTITUENTS ON THE EL ECTROCHEMICAL REDUCTION POTENTIALS OF AROMATIC COMPOUNDS (1991) (0)
PROTONATION AND REACTIONS OF 2-NAPHTHOLSULFONIC ACIDS IN FLUOROSULFONIC AND TRIFLUOROMETHANESULFONIC ACIDS (1976) (0)
SCIENTIFIC INFORMATION CENTER OF MOLECULAR SPECTROSCOPY IN THE SIBERIAN BRANCH OF THE ACADEMY OF SCIENCES OF THE U.S.S.R. (1975) (0)
INTERCONVERSIONS OF DICATIONS OF ALKYL-AROMATIC COMPOUNDS AND THEIR CONJUGATE BENZYL TYPE CATIONS (1980) (0)

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What Schools Are Affiliated With Valentin Koptyug?

Valentin Koptyug is affiliated with the following schools:

D. Mendeleev University of Chemical Technology of Russia