Jerome A. Berson
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American chemist
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Chemistry
Jerome A. Berson's Degrees
- PhD Chemistry University of California, Berkeley
- Bachelors Chemistry University of California, Berkeley
Why Is Jerome A. Berson Influential?
(Suggest an Edit or Addition)According to Wikipedia, Jerome A. Berson was an American chemist who was a Sterling Professor at Yale University, and also a published author. He worked on sigmatropic rearrangements, thermal and carbocationic rearrangements, and the role of orbital symmetry in chemical reactions while at University of Wisconsin. While at Yale University, he was part of many new studies, especially on non-Kekulé molecules.
Jerome A. Berson'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
- The Correlation of Solvent Effects on the Stereoselectivities of Diels-Alder Reactions by Means of Linear Free Energy Relationships. A New Empirical Measure of Solvent Polarity (1962) (214)
- Violations of Hund's Rule in Non-Kekule Hydrocarbons: Theoretical Prediction and Experimental Verification (1994) (184)
- The chemistry of trimethylenemethanes, a new class of biradical reactive intermediates (1978) (123)
- Orbital-symmetry-forbidden reactions (1972) (103)
- Subjacent orbital control. Electronic factor favoring concertedness in Woodward-Hoffmann forbidden reactions (1972) (84)
- Flash pyrolytic production of rotationally cold free radicals in a supersonic jet. Resonant multiphoton spectrum of the 3p2A2" .rarw. X2A2" origin band of methyl (1986) (84)
- The Absolute Configurations of Some Simple Norbornane Derivatives. A Test of the “Conformational Asymmetry” Model1a (1961) (82)
- A New Class of Non-Kekule Molecules with Tunable Singlet-Triplet Energy Spacings (1997) (82)
- The stereochemistry of sigmatropic rearrangements. Tests of the predictive power of orbital symmetry rules (1968) (80)
- Resolution, Stereochemial Correlation and Maximum Rotations of the Norbornane- and 5-Norbornene-2-carboxylic Acids. Isotope Dilution as an Aid in the Determination of Optical Purity1 (1959) (77)
- Studies on Dihydropyridines. II. The Photochemical Disproportionation of 4-(2'-Nitrophenyl)-1,4-dihydropyridines1 (1955) (75)
- Thermally Induced Skeletal Rearrangements of Tropilidenes1 (1966) (72)
- Enthalpy and kinetics of isomerization of quadricyclane to norbornadiene. Strain energy of quadricyclane (1975) (62)
- A Synthesis of Ketones by the Thermal Isomerization of 3-Hydroxy-1,5-hexadienes. The Oxy-Cope Rearrangement (1964) (56)
- Inversion of configuration in the migrating group of a thermal 1,3-sigmatropic rearrangement (1967) (55)
- Thermal stereomutation of cyclopropanes (1976) (53)
- Discoveries missed, discoveries made: creativity, influence, and fame in chemistry (1992) (50)
- Studies on Dihydropyridines. I. The Preparation of Unsymmetrical 4-Aryl-1,4-dihydropyridines by the Hantzsch-Beyer Synthesis1 (1955) (50)
- Geometry of the transition state of the retrograde homo Diels-Alder reaction. Stereospecific conversion of 1,3-to 1,4-dienes (1969) (49)
- Stepwise Mechanisms in the Oxy-Cope Rearrangement (1964) (47)
- Heterocyclic aromatic non-Kekulé molecules: synthesis and solution-phase chemistry of the singlet biradicals 3,4-dimethylenefuran and 3,4-dimethylenethiophene (1989) (47)
- Formation and thermal rearrangements of some dimers of butadiene and piperylene. Tests of the validity of thermochemical-kinetic arguments for identification of common biradical intermediates (1976) (45)
- 2-Isopropylidenecyclopentane-1,3-diyl. Preparation, properties, and reactions of a distorted trimethylenemethane. Direct evidence for a triplet reaction (1971) (41)
- The Effect of Pressure on the Rate and Equilibrium Constants of Chemical Reactions. The Calculation of Activation Volumes by Application of the Tait Equation (1962) (36)
- Synthesis of two bis-m-quinomethanes. An experimental study of connectivity effects on the equal-parity criterion for low-spin ground states in alternant non-Kekule molecules (1986) (36)
- Steric prohibition of the inversion pathway. Test of the orbital symmetry prediction of the sense of rotation in thermal suprafacial 1,3-sigmatropic rearrangements (1970) (36)
- Allylic and .alpha.-oxygen resonance energy effects on the "strengths" of carbon-carbon bonds. Activation parameters in stepwise biallyl rearrangements (1968) (35)
- Non-kekulé molecules derived conceptually by heteroatom-for-carbon substitution in alternant hydrocarbons: M-Quinomethane and M-Naphthoquinomethane (1982) (35)
- Diradicals: conceptual, inferential, and direct methods for the study of chemical reactions. (1994) (35)
- The Stereochemistry of the Perbenzoic Acid Oxidation of Optically Active exo-Acetylnorbornane1 (1959) (35)
- Ring-Chain Tautomerism of Pyrylium Pseudo-bases1 (1952) (33)
- Nitrogen Analogs of Sesquifulvalene. I. Synthesis and Properties1a,2 (1965) (32)
- Directed synthesis of cis-anti-cis-tricyclo[6.4.0.02,7]dodecatetraene (o,o'-dibenzene). Thermal rearrangement of a blocked dibenzene to a caged (CH)12 precursor (1972) (32)
- The Action of Acetic Anhydride on 4-Methylpyridine-N-oxide1 (1955) (32)
- Triplet ground states of trimethylenemethanes (1976) (32)
- Studies on Dihydropyridines. III. An Absolute Asymmetric Synthesis and an Attempted Conversion of Carbon Atom Asymmetry to Biphenyl Asymmetry1 (1955) (32)
- Energies of non-Kekulé molecular states. Calculation by a predictively useful semiempirical method (1985) (31)
- Thermal stereomutation of optically active trans-cyclopropane-1,2-d2 (1975) (30)
- New Thermal Rearrangements of Tropilidenes1 (1965) (30)
- Remote control of stereogenicity transfer by ring-generated anisotropic orbital overlap. Stereochemistry of hydrogen shift in the intramolecular reverse ene reaction of a cis-2-alkyl-1-alkenylcyclopropane (1991) (30)
- The stereochemistry and mechanism of the [σ2 + σ2 +σ2] cycloreversion (1974) (30)
- The mechanism of pyrolysis of cyclopropanes. Racemization and geometrical isomerization of tetramethylcyclopropane-d6 (1968) (30)
- The Mechanism of the Diels-Alder Reaction. The Stereochemistry of the endo-exo Isomerization of the Adducts of Cyclopentadiene with Acrylic and Methacrylic Esters1 (1961) (29)
- Properties of organic diradicaloid molecules predicted by semiempirical molecular orbital theory. A practical procedure (1989) (29)
- The Intramolecular Thermal Rearrangement of the Bicyclo[3.2.0]Heptenyl to the Bicyclo[2.2.1]Heptenyl System (1962) (29)
- Bicyclo[3.1.0]hex-3-en-2-y1 cation (1971) (28)
- The Stereochemistry of the Furan—Maleic Acid Reaction1 (1953) (26)
- The first magic angle spinning NMR spectrum of a captive intermediate: direct observation of a singlet ground state biradical, 3,4-dimethylenefuran (1987) (25)
- Spectra as a Guide to Structure in the Hydroxypyrone and Hydroxypyridone Series (1956) (25)
- Rearrangement of trans-1,2-divinylcyclobutane and the energy surface of the dimers of butadiene (1973) (25)
- cis-Addition in the Bromination of Bicyclic Olefins. The Structure and Stereochemistry of the Dibromides of exo-cis-3,6-Endoxo-Δ4-tetrahydrophthalic Anhydride and endo-cis-3,6-Endomethylene-Δ4-tetrahydrophthalic Anhydride1 (1954) (25)
- Ground-state multiplicities of 3,4-dimethylenefuran and 3,4-dimethylenethiophene. Experimental tests of ab initio and semiempirical theories of heteroatom-bridged disjoint biradicals (1989) (25)
- On the Structure of Dehydroacetic Acid (1952) (24)
- M-QUINOMETHANE: SYNTHESIS OF A COVALENT-BIRADICALOID PAIR OF VALENCE TAUTOMERS (1979) (24)
- Stereochemistry of the thermal homodienyl hydrogen shift reverse ene reaction. Stereoelectronic control of stereogenicity transfer through the anisotropic influence of a cyclopropane ring (1990) (24)
- Solvolytic behavior of bicyclo [3.1.0]hex-3-en-2-yl derivatives. Mechanism of photolysis of benzene in hydroxylic media (1971) (24)
- The Synthesis and Complete Resolution of 2-Hydroxy-1,1'-binaphthyl and the Reaction of its Phenylglyoxylate with Methylmagnesium Iodide1,2 (1958) (23)
- Ab initio calculations on 1,2,4,5-tetramethylenebenzene at geometries optimized by .pi.-CI calculations. Prediction of a singlet ground state for a disjoint diradical (1986) (23)
- 2,3,5,6-Tetrakis(methylene)-1,4-cyclohexanediyl (1,2,4,5-tetramethylenebenzene), a disjoint non-Kekule singlet hydrocarbon biradical (1993) (23)
- 7,7-Dicarbomethoxycycloheptatriene (1968) (23)
- Synthesis of the covalent benzene−carbon monoxide cycloadduct, norborna-2,5-dien-7-one: correlation of kinetic and thermodynamic stabilities in cycloreversion reactions (1986) (22)
- What is a discovery? Carbon skeletal rearrangements as counter-examples to the rule of minimal structural change. (2002) (22)
- Erich Hückel, Pioneer of Organic Quantum Chemistry: Reflections on Theory and Experiment (1996) (22)
- 3,4-Dimethylenefuran and 3,4-dimethylenethiophene, heterocyclic analogues of the disjoint non-Kekulé hydrocarbon tetramethyleneethane (1986) (22)
- The Stereochemistry and Mechanism of the Diels-Alder Reaction. An “Internal” Mechanism for the Interconversion of endo-exo Isomers1,2 (1956) (22)
- Homotropylium-4-d ion. Energy barrier to a non-least-motion circumambulatory rearrangement (1972) (21)
- Skeletal rearrangements of the methyl-7,7-dicyanonorcaradienes (1967) (21)
- Hypothetical Biradical Pathways in Thermal Unimolecular Rearrangements (1980) (21)
- Incremental substituent effects leading to steric blockade of the boat-like six-center Cope rearrangement of cis-1,2-dialkenylcyclobutanes (1972) (21)
- The oxy-Cope rearrangement. Evidence for an intramolecular mechanism and an enolic intermediate (1968) (21)
- Long-lived spin isomerism of singlet and triplet states of N-arenesulfonyl-3,4-dimethylenepyrroles (1993) (21)
- Thermal Rearrangements of the 7-Carbomethoxy-2-norcarenes (1964) (21)
- Nitrogen Analogs of Sesquifulvalene. II. Theoretical Correlation of Ground-State Properties1a,2 (1965) (21)
- A Preference for Endoid Addition in the Ene Synthesis1 (1966) (21)
- Observation of two characteristic methylenecyclopropane stereomutations in a system that also forms trimethylenemethane dimers. An experimental connection between putative and directly observed biradicals (1982) (20)
- A Kinetically Stable Singlet-State of 1,2,4,5-Tetramethylenebenzene (1992) (20)
- The Ring Expansion Route to Bicyclic Carbonium Ions. II. The Multiple Rearrangement of the exo-2-Norbornylcarbinyl System1a-c (1964) (20)
- Chemistry of methylnorbornyl cations. VI. The stereochemistry of vicinal hydride shift. Evidence for the nonclassical structure of 3-methyl-2-norbornyl cations (1967) (20)
- Formal kinetic proof of reversible unimolecular transformation to a biradical as an obligatory first step in the mechanism of cycloaddition of 5-isopropylidenebicyclo[2.1.0]pentane to olefins (1982) (19)
- Implication of a common trimethylenemethane intermediate in dimer formation and structural methylenecyclopropane rearrangement of a bicyclo[3.1.0]hex-1-ene to a 5-alkylidenebicyclo[2.1.0]pentane (1982) (19)
- Chemistry of bicyclo[3.1.0]hex-1-enes contrasted with that of 2-alkylidenecyclopentane-1,3-diyls (1982) (19)
- Mechanistic separation of singlet and triplet reactions of a trimethylenemethane. Stereospecificity and regiospecificity in the cycloadditions of 2-isopropylidenecyclopentane-1,3-diyl to olefins (1974) (19)
- [1,3]-Sigmatropic rearrangement with retention of configuration forced upon the migrating group (1974) (19)
- Asymmetric Induction Studies with Optically Active Biphenyls. The Reactions of Phenylglyoxylates of the Phenyldihydrothebaine Series with Methylmagnesium Iodide1 (1958) (19)
- Mechanistic analysis of the four pathways in the 1,3-sigmatropic rearrangements of trans-1,2-trans, trans- and trans-1,2-cis,trans-dipropenylcyclobutane (1973) (19)
- The Nitrous Acid Deamination of the Norbornylamines. Carbon and Nitrogen Rearrangements of Norbornyl Cations (1964) (19)
- Nonreversal of stereochemistry in the photochemical counterpart of a thermal retrograde cycloaddition (1970) (18)
- Pyrolytic transformation of bicyclo[4.2.1]nona-2,4,7-triene to bicyclo[4.3.0]nona-2,4,7-triene (cis-8,9-dihydroindene). The "hydrogen-rebound" pathway of thermal rearrangement (1971) (18)
- m-Quinodimethane, parent hydrocarbon of the m-quinonoid non-Kekule series. Low-temperature isolation and solution-phase chemical reactivity (1985) (18)
- Skeletal Reorganization in Tropilidene Rearrangements1 (1965) (18)
- Dimerization and cycloaddition reactions of a trimethylenemethane derivative, 2-isopropylidenecyclopenta-1,3-diyl. Mechanistic separation of triplet and singlet reactions (1980) (18)
- SYNTHETIC APPROACHES TO IPECAC ALKALOIDS. II. A SYNTHESIS OF 4-CARBOMETHOXY-5-ETHYL-2-METHYLPYRIDINE1, 2 (1955) (18)
- Synthetic Approaches to Ipecac Alkaloids. I. A New Synthesis of 2-Pyridones1a,b (1956) (18)
- Π-Conjugated Non-Kekule Molecules and the Limits of Hund's Rule (1989) (18)
- A Qualitative Correlation of the Spectra of Some Heterocyclic Carbonyl Compounds (1953) (17)
- Chemical Discovery and the Logicians' Program: A Problematic Pairing (2003) (17)
- Forbidden 1,3-sigmatropic rearrangements (1973) (17)
- Tuning the Singlet−Triplet Energy Gap in a Non-Kekulé Series by Designed Structural Variation. The Singlet States of N-Substituted-3,4-dimethylenepyrrole Biradicals (1997) (17)
- Sequential mechanism in the oxidative demetalation of a trimethylenemethane-iron tricarbonyl complex, tricarbonyl[((1-3,6-.eta.)-2-methylenecyclopentane-1,3-diyl]iron (1983) (17)
- A missed turning point for theory in organic chemistry: molecular orbitals at Montpellier in 1950 (2005) (16)
- Absolute rates of dimerization and cycloaddition of 3,4-dimethylenefuran and 3,4-dimethylenethiophene by nanosecond time-resolved spectroscopy (1988) (16)
- Memory effects in multiple carbonium ion rearrangements. II. Behavior of the potentially symmetrical cation in the ring-expansion reactions of 7-norbornylcarbinyl systems (1969) (16)
- The Kinetics of Addition, Dissociation and Isomerization in Two Diels-Alder Systems. A Test for “Molecule-Pair” Intermediates1a (1961) (16)
- Catenation of Heterocyclic Non-Kekulé Biradicals to Tetraradical Prototypes of Conductive or Magnetic Polymers (1997) (16)
- Reactions of the 2-Bornyl Radical. II. a Free Radical Wagner-Meerwein Rearrangement (1962) (16)
- Synthesis and thermolysis of 5-alkylidenebicyclo[2.1.0]pentanes. Generation and dimerization of trimethylenemethane triplet biradicals by bond rupture of strained hydrocarbons (1982) (15)
- Norborna-2,5-dien-7-one: a covalent benzene-carbon monoxide adduct. A new point on the cycloreversion structure-reactivity correlation curve (1985) (15)
- Kinetics, thermodynamics, and the problem of selectivity: the maturation of an idea. (2006) (15)
- Stereochemistry and mechanism of the reverse ene reaction of cis-2-alkyl-1-alkenylcyclobutanes. Stereoelectronic control in a system showing marginal energetic benefit of concert (1991) (15)
- A thermal[1,3]sigmatropic acyl shift in the degenerate rearrangement of bicyclo[3.2.1]oct-2-en-7-one (1977) (15)
- Additions and Corrections - Thermal Rearrangement of an Allenic Diazoalkane and Intermolecular Capture of a Diazoethene by a Cyclopropene To Give a Common Dihydropyridazine Product (1981) (15)
- Stereochemistry of the thermal acetylenic cope rearrangement. Experimental test for a 1,4-cyclohexenediyl as a mechanistic intermediate (1990) (14)
- Absolute rates of triplet-triplet dimerization and cycloaddition of trimethylenemethane biradicals (1976) (14)
- Parallel reactivity sequences in cycloadditions of singlet biradicals and Diels-Alder reactions. A common physical basis manifested as entropy control or enthalpy control (1989) (14)
- A Re-examination of the Diisohomogenol Structure1 (1950) (14)
- Memory Effects and Stereochemistry in Multiple Carbonium Ion Rearrangements (1968) (14)
- Triplet Species from Dihydropyrrolo[3,4-d]pyridazines, the Diazene Precursors of N-Arenesulfonyl-3,4-dimethylenepyrroles (1997) (14)
- Identity of 3,4-dimethylenethiophene reactive intermediates from diazene and bis-allene precursors. Correlation of singlet biradical reactivity in the tetramethyleneethane and trimethylenemethane series. (1987) (14)
- Memory effects in multiple carbonium ion rearrangements. III. Effects of .beta.-methyl substitution on selectivity and reactivity in the ring expansions of 7-norbornylcarbinyl and 7-norbornenylcarbinyl derivatives (1969) (14)
- Structure of the carrier of the cross-polarization magic angle spinning carbon-13 nuclear magnetic resonance signal assigned to 3,4-dimethylenethiophene. Multiple position-labeling and chemical trapping in annealed glasses (1991) (14)
- High-temperature pathways on the energy surface connecting a vinylidene and a trimethylenemethane. Gas-phase generation of a bicyclo[3.1.0]hex-1-ene and a novel cyclization of a 1,2,5-triene (1982) (14)
- The Overlap Component of the Stereoelectronic Factor. Remote Control of Stereogenicity Transfer Through the Anisotropic Influence of a Ring (1991) (14)
- Stereochemistry of thermal isomerizations of 2,3-dimethylbicyclo[2.1.0]pentanes to 2,5-heptadienes (1970) (14)
- Stereochemistry and mechanism of m-cyclophane formation in the 1,4-additions of dienes to the m-quinodimethane biradical. On the question of formal 1,2-addition via sequential 1,4-addition and rearrangement (1985) (14)
- Geometric isomerization vs. cycloreversion in the pyrolysis of tetramethylcyclobutane-d6. Ponderal and energetic effects on the competition ratio in a series of "1,4-butanediyls" (1970) (14)
- Evidence from the absorption and emission spectra of trimethylenemethane derivatives for two molecular species in thermal equilibrium (1978) (13)
- Regioselectivity in cycloadditions of singlet 2-methylenecyclopenta-1,3-diyl species (1980) (13)
- Recent studies of reactive intermediates. The limits of Hund's rule in pi-conjugated non-Kekule molecules (1987) (13)
- The Reaction of Ketene with Pyridine1 (1956) (13)
- Medium Effects on the Rates of Stereomutation of a Pair of Diastereomeric Cyclopropanones. Ground State Stabilization in Nucleophilic Solvents Induces Deviation from Solvent Polarity Controlled Behavior (1996) (13)
- The energy barrier to combination of allylic radicals. Relative rates of rotation and ring closure of a rotameric pair of diradicals in the oxy-Cope rearrangement (1968) (13)
- Direct observation of a hydrocarbon singlet 1,3-biradical by picosecond laser-induced fluorescence spectroscopy (1982) (13)
- Stereospecific double rearrangement of trans-3,4-dimethyl-cis,trans-cycloocta-1,5-diene to cis-3,4-dimethyl-cis,cis-cycloocta-1,5-diene (1972) (13)
- Photochemical generation and preparative capture of 1,2,4,5-tetramethylenebenzene in fluid solution. Nanosecond time-resolved spectroscopic determination of absolute rates of dimerization and oxygen trapping of a disjoint singlet hydrocarbon biradical (1992) (13)
- Quintet ground state of a non-Kekule tetraradical 3,6-dimethyleneanthracenyl-1,7-dioxy (1983) (13)
- On the mechanism of the indene-maleic anhydride reaction☆ (1964) (13)
- Chemical Creativity: Ideas from the Work of Woodward, Hückel, Meerwein and Others (1999) (13)
- Direct formation of methylenecyclopentanes by cycloaddition of a trimethylenemethane to olefins (1972) (12)
- Thermal Interconversion of a Pair of Diastereomeric Cyclopropanones. An Upper Limit for a Cyclopropanone-Oxyallyl Energy Separation (1992) (12)
- The influence of substituents on the molecular orbital energies and ground electronic states of substituted trimethylenemethanes (1976) (12)
- Pressure Effects on Reaction Rates. The Compressibility of Transition States (1964) (12)
- A NITROGEN ANALOG OF SESQUIFULVALENE1 (1960) (12)
- Quantitative measurement of endo preference in homodienyl hydrogen shifts (1984) (12)
- Static structure of a regular intermediate controls the course of the thermal 1,3-sigmatropic rearrangement of 6-methylenebicyclo[3.1.0]hex-2-enyl derivatives (1988) (12)
- ENERGIES OF NON-KEKULE MOLECULAR STATES. CALCULATION BY A PREDICTIVELY USEFUL SEMIEMPIRICAL METHOD (1985) (12)
- Formation and Capture of a Reactive Intermediate Related to Dimethylpseudoindene (1964) (12)
- An Optically Inactive Intermediate in the Multiple Rearrangement of exo-2-Aminomethylnorbornane (1962) (12)
- Mechanisms of dimerization and rearrangement of a bicyclo[3.1.0]hex-1-ene (1979) (11)
- Stereochemistry of the Diels-Alder dimerization of trans,trans-penta-1,3-diene-1-d (1975) (11)
- The Hydration of exo-cis-3,6-Endomethylene-Δ4-tetrahydrophthalic Anhydride1 (1958) (11)
- Synchronous double rotation in the stereomutation of optically active 1-phenylcyclopropane-2-d (1975) (11)
- THE MECHANISM OF THE THERMAL ISOMERIZATION OF THE CYCLOPENTADIENE-METHYL METHACRYLATE ADDUCTS1 (1960) (11)
- Stereochemistry of a Cyclopropanone by Crystal Structure Analysis. The Exo Configuration of the Diels-Alder Adduct of Cyclopropenone and 1, 3-Diphenylisobenzofuran Appears To Be Stabilized Relative to the Endo by an Attractive Ether-Carbonyl Interaction (1994) (11)
- Cycloreversions of diazabicyclo[4.2.0]octenes. Test of the bent bond requirement for concert (1974) (11)
- Memory effects in multiple carbonium ion rearrangements. IV. Solvolytic studies of the tricyclo[3.2.1.02,7]oct-4-yl system (1969) (11)
- A test for "wrong-bond" rupture in the thermal structural isomerization of phenylcyclopropane and a confirmation of the two-center epimerization mechanism in its stereomutation (1978) (11)
- Bredt Rule Interdictions of Cyclopropane Rearrangements. The Vinylnortricyclenes1 (1965) (10)
- ON THE STEREOCHEMISTRY AND MECHANISM OF THE DIELS-ALDER REACTION1 (1955) (10)
- A FREE RADICAL WAGNER-MEERWEIN REARRANGEMENT (1960) (10)
- Mechanistic characterization of the intermediates in the thermal and photochemical deazetation of two isomeric methylenepyrazolines, 7-isopropylidene-2,3-diazabicyclo[2.2.1]hept-2-ene and 2,2-dimethyl-3,4-diazabicyclo[3.3.0]octa-3,8-diene. An aproach to the generation and capture of protoplanar and (1980) (10)
- Nitrogen Analogs of Sesquifulvalene. III. Theoretical Correlation of Excited-State Properties1a,2 (1965) (10)
- Generation and capture of common intermediates from proto-planar and proto-bisected trimethylenemethane precursors. Thermal rearrangement of a methylenepyrazoline (1977) (10)
- A STANDARD OF ABSOLUTE CONFIGURATION FOR OPTICALLY ACTIVE BIPHENYLS1 (1956) (10)
- Thermal sigmatropic migration of the carbomethoxyl group [22] (1971) (10)
- 1,3-Bis(3,4-dimethylene-5-methyl-2-thienyl)benzene, a Singlet Tetraradical Prototype of a Quasi-Alternant Nonclassical Conducting Polymer (1996) (10)
- On the size of the singlet-triplet energy gap in trimethylenemethanes (1977) (10)
- Photochemistry of a triplet biradical. Cyclization, cleavage, and hydrogen shift in 2-isopropylidenecyclopentane-1,3-diyl (1982) (10)
- Two-dimensional solid-state NMR of a captive intermediate. Structure of the radical centers in 3,4-dimethylenethiophene (1989) (9)
- Chemistry of methylnorbornyl cations. V. Solvent capture and hydride shift in the 3-endo-methyl series (1967) (9)
- Automerization of 6-methylenebicyclo[3.2.1]oct-2-ene (1974) (9)
- Non‐Kekulé Molecules as Reactive Intermediates (2005) (9)
- A Synthesis of Maleimide (1954) (9)
- Relative diylophylic reactivities of olefins toward a trimethylenemethane (1974) (9)
- Direct measurements of the absolute rates of dimerization and capture of the 2-isopropylidenecyclopenta-1,3-diyl species by electron paramagnetic resonance spectroscopy (1980) (9)
- Formation and intermolecular capture of m-quinodimethane (1984) (9)
- Stereodistal Cope rearrangement of trans-1,2-dialkenylcyclobutanes (1972) (8)
- Kinetic confirmation and synthetic circumvention of the cascade mechanism for population of the triplet ground state of a trimethylenemethane (1976) (8)
- 2,6-Dimethyleneanthracenyl-4,8-dioxy. High-spin ground state of a disjoint biradical that has no Hueckel NBMO degeneracy (1983) (8)
- Ab initio study of 1,2,4,5-tetramethylenebenzene: a disjoint non-Kekulé molecule with a possible singlet ground state (1985) (8)
- Carbonium ion rearrangements of bicyclo[2.2.2]oct-2-ylcarbinyl derivatives (1971) (8)
- Identification of a biradical as the reactive form of the 2-isopropylidenecyclopentane-1,3-diyl singlet species (1981) (8)
- A ranking of diylophilic reactivities of olefins toward the singlet and triplet forms of the trimethylenemethane biradical, 2-isopropylidenecyclopenta-1,3-diyl (1980) (8)
- Persistence of stereospecificity of thermal homodienyl hydrogen shift reverse ene reactions in cyclobutane systems (1990) (8)
- Memory effects in multiple carbonium ion rearrangements. I. Ring-expansion route to cations of the bicyclo[2.2.2]octenyl series (1969) (8)
- Stabilization of a putative cyclohexane-1,4-diyl intermediate elicits an antarafacial Cope rearrangement via a stepwise mechanism. Pyrolysis of (R,E)-5-methyl-1,2,6-octatriene to 4-methyl-3-methylene-1,5-heptadiene (1994) (7)
- Absolute rates of heterocyclic singlet biradical reactions determined by nanosecond time-resolved absorption spectroscopy. Dimerizations and cycloadditions to alkenes and to dioxygen (1993) (7)
- Chemistry of methylnorbornyl cations. IV. Ratios of rates of nucleophilic capture of the cations at Wagner-Meerwein-related sites (1967) (7)
- Ring-inversion barriers for the 3- and 4-cyclohexenyl radicals in solution (1987) (7)
- The Self-Condensation of Phenacyl Bromide. The Structure of the Halogen Diphenacyls (1952) (7)
- Geometry of the transition state of the decarbonylation of bicyclo[2.2.1]hepta-2,5-dien-7-one. Experimental and ab initio theoretical studies (1988) (7)
- Stereochemical Requirements of Multiple Rearrangements. Evidence for Classical Carbonium Ion Intermediates (1962) (7)
- Competing pathways in the photolysis of bicyclo[1.1.0]butane (1985) (7)
- Generation and reactivity of sterically hindered bicyclo[3.1.0]hex-1-enes (1982) (7)
- Electronic spin of the ground state of m-naphthoquinomethane, a non-Kekule molecule with nondegenerate Hueckel nonbonding molecular orbitals (NBMOs) (1981) (7)
- Molecules with Very Weak Bonds: The Edge of Covalency (2008) (7)
- Solvent effects on the stereoselectivity of diels-alder reactions (1961) (6)
- meta‐Quinonoid compounds (2010) (6)
- REGIOSELECTIVITY IN CYCLOADDITIONS OF SINGLET 2‐METHYLENECYCLOPENTA‐1,3‐DIYL SPECIES (1980) (6)
- On the criteria for PI-electron delocalization in some cyclic conjugated systems (1964) (6)
- Memory effects in multiple carbonium ion rearrangements. V. Nucleophilic capture of an asymmetric tricyclooctyl cationic intermediate in the ring expansion of the nortricyclylcarbinyl system (1969) (6)
- Synthetic Approaches to Ipecac Alkaloids. III. Studies on the Synthesis and Partial Reduction of Pyridones1,2 (1959) (6)
- Chemistry of methylnorbornyl cations. II. Sources and identification of sixteen of the methylnorbornanols (1967) (6)
- 5-Alkylidenebicyclo[2.1.0]pentanes. On the question of a negative bond dissociation energy (1979) (6)
- Thermally generated benzannelated trimethylenemethane biradicals of the 2-methylenecyclohexene-1,3-diyl series escape capture by a new rearrangement to benzannelated bicyclo[3.2.0]hept-1-enes (1989) (6)
- Stereoisomerization by bridgehead double inversion and olefinic torsion in 5-alkylidenebicyclo[2.1.0]pentanes (1979) (6)
- Reactions of the 2-Bornyl Radical. I. The Decarbonylation of 2-Formylbornane (1962) (6)
- Kekulé Escapes, Popper Notwithstanding (2000) (6)
- An intermolecular "memory effect" in the formation and capture of a potentially symmetrical tricyclooctyl cation (1968) (5)
- Reactions of 1,3-Diphenylisobenzofuran with Acetylenic Dienophiles (1953) (5)
- Relation between the relative kinetic effect of substitution and the absolute magnitude of the activation energy in carbonium ion reactions. Stereoselectivity in carbonium ion ring expansions of the 1-methyl-7-norbornylcarbinyl system (1971) (5)
- Experimental test of an alternative hypothesis for isotope-position scrambling in the photochemical wolff rearrangement of zibenzil (1981) (5)
- Strained Hydrocarbons: Beyond the van’t Hoff and LeBel Hypothesis (2009) (5)
- Isomeric Carbonium Ions. Ring Expansion of thesyn- andanti-2-Norbornene-7-carbinyl Systems (1964) (5)
- On the Geometric Requirements for Thermolysis of Allylic Bonds. The 1,3-Sigmatropic Rearrangement of syn,cis-Bicyclo[3.2.0]hept-2-enyl 6-Acetate (1967) (5)
- Exclusion of a 1,4-cyclohexenediyl as a metastable intermediate in the [3,3] sigmatropic rearrangement of a 1-hexen-5-yne (1988) (5)
- The nature of the capturable singlet trimethylenemethane intermediate in the decomposition of 7-isopropylidene-2,3-diazanorbornene (1977) (5)
- CIS-ADDITION IN THE BROMINATION OF A BICYCLIC OLEFIN (1953) (5)
- The distinctively different chemical properties of bicyclo [3.1.0]Hex-1-enes and singlet trimethylenemethanes (1978) (5)
- Mechanism of the reaction of 7-isopropylidene-2,3-diazanorborn-2-ene with olefins. Evidence for asymmetrical, nitrogen-free intermediate (1972) (5)
- Orbital overlap constraints in the thermal rearrangement of 3,7-dimethylenetricyclo[4.1.0.02,4]heptane derivatives (1993) (4)
- Further Studies on the Bromination of Bicyclic Olefins. The Bromination of exo-cis-3,6-Endomethylene-Δ4-tetrahydrophthalic Anhydride1 (1954) (4)
- Stereochemical course of thermal cycloreversion of [3.2.1]propellanes to 1,3-dialkenylcyclohexanes (1983) (4)
- Trisection of reaction pathways in automerization of 6-methylenebicyclo[3.2.1]oct-2-ene (1978) (4)
- Preferential formation of a symmetrical rather than an unsymmetrical cyclopropylcarbinyl cation. Vicinal vs. transannular hydride shift in the tricyclo[3.2.1.02,7]oct-4-yl system (1968) (4)
- The Addition of p-Thiocresol to Bicyclic Olefins. Quantitative Analysis for Rearrangement Products1 (1956) (4)
- Frontier orbital control of regiospecificity in singlet cycloadditions of 2-methylenecyclopenta-1,3-diyls (1978) (4)
- The Structure and Stereochemistry of Bicyclic Derivatives. V.1 Pyrolysis of endo-cis-3,6-Endomethylene-exo-cis-4,5-dibromohexahydrophthalic Acid (1954) (4)
- Transition state stucture and frontier orbital influence on the cycloaddition reactions of 2,5-dimethyl-3,4-dimethylenethiophene with styrenes and benzaldehydes (1991) (4)
- Chemistry of methylnorbornyl cations. III. Configurational correlation of 2,3- and 2,7-substituted norbornyl derivatives by way of 3-substituted nortricyclenes (1967) (4)
- Stereochemistry of additions of m-quinomethane to olefins and acyclic dienes (1986) (4)
- Infrared Spectra of Some Tricyclic and Tetracyclic Lactones1 (1954) (4)
- 6-Methylenebicyclo[3.1.0]hex-3-en-2-yl Cation, an Isomer of Benzyl Cation. (1986) (4)
- 1-bar|t-butyl-5-isopropylidenebicyclo[2.1.0]pentane (1982) (4)
- On the origin of long-lived spin isomerism in π-conjugated non-Kekulé molecules (1998) (4)
- Asymmetric Induction Studies with Optically Active Biphenyls. V. On the Unreliability of Absolute Configurational Assignments Based on Hydride Reductions of Phenylglyoxylates1 (1959) (4)
- Picosecond absorption studies on m-naphthoquinomethane. Singlet-triplet intersystem crossing (1985) (4)
- Notes - Conversion of a 1,4-Diol to a Lactone by Raney Nickel (1956) (4)
- A New Multi‐Step Thermal Rearrangement of a Terminal Allene (1985) (3)
- Structural Determinants of the Chemical and Magnetic Properties of Non‐Kekule Molecules (2000) (3)
- exo Vicinal Hydride Shift in the 3-endo-Methyl-2-norbornyl Cation1 (1965) (3)
- GENERATION AND CAPTURE OF COMMON INTERMEDIATES FROM PROTO‐PLANAR AND PROTO‐BISECTED TRIMETHYLENEMETHANE PRECURSORS. THERMAL REARRANGEMENT OF A METHYLENEPYRAZOLINE (1978) (3)
- The Absence of Nortricyclonium Species in a Norbornyl Cation System. The Stereochemistry of 6,2-Hydride Shifts1 (1965) (3)
- A Memory Effect in the Generation of 2-Bicyclo[3.2.1]octyl Cation. On the Mechanism of Racemization of 2-Bicyclo[2.2.2]octyl Cation1 (1966) (3)
- Fundamental theories and their empirical patches (2008) (3)
- The Stereochemistry of Vicinal Hydride Shift in the 3-Methyl-2-norbornyl Cation. Evidence for the Nonclassical Structure1 (1965) (3)
- New trimethylenemethane cycloaddition mechanisms. Chemistry of 1-t-butyl-5-isopropylidenebicyclo[2.1.0]Pentane (1985) (3)
- Chemistry of the energy-rich m-quinomethane system. Formal [3 + 2] cycloadditions to olefins via a singlet intermediate (1982) (3)
- Magnification of the memory effect by methyl substitution. Ring expansions of the 1-methylnorborn-2-nyl-7-anti- and -7-sn-carbinyl and the 1-methyl-endo-and -exo-2-norbornylcarbinyl systems (1971) (3)
- The Reaction of (+)-endo-Norbornylamine with Nitrous Acid1 (1959) (3)
- A circuitous mechanism for the formation of a cyclopropylcarbinyl cation. On the anomalous relative migratory aptitude of a cyclopropyl vs. a cyclopentyl ring in nortricyclylcarbinyl cation (1968) (3)
- R. B. WOODWARD THE TEACHER, AS REMEMBERED BY HIS STUDENTS (1999) (2)
- Reciprocal Tests of Steric Opposition to Down-Disrotatory ThermalDecyclization of [3.2.1] Propellanes. The Cycloreversion Stereochemistry of the 6,7,8-Trimethyltricyclo[3.2.1.01,5] octanes (1988) (2)
- ENTHALPY AND KINETICS OF ISOMERIZATION OF QUADRICYCLANE TO NORBORNADIENE, STRAIN ENERGY OF QUADRICYCLANE (1975) (2)
- Violations of Hund′s Rule in Non-Kekule Hydrocarbons: Theoretical Prediction and Experimental Verification (1994) (2)
- Mechanism of thermal rearrangement of the spiro bicyclo[2.1.0]-pentane-5,2'-methylenecyclopropanes to 6- and 7- methylenebicyclo[3.2.0]hept-1-enes. (1980) (2)
- Qhiral pathways in the thermal rearrangement of 3,7-dimethylene-1-ethyltricyclo[4.1.02,4]heptane to 2,5-dimethylene-3-ethylbicyclo[4.1.0]hept-3-ene. Decyclization of a pair of 2,2'-linked methylenecyclopropanes avoids a symmetrical 2,5-dimethylenecyclohept-3-ene-1,6-diyl biradical intermediate (1991) (2)
- Inert Bicyclic Vicinal Dibromides. Solvolysis, Elimination and Rearrangement Studies1 (1954) (2)
- TRANSIENT ESR AND MAGNETOPHOTOSELECTION IN THE PHOTOLYTIC FORMATION OF A TRIMETHYLENEMETHANE BIRADICAL (1984) (2)
- AB INITIO STUDY OF 1,2,4,5‐TETRAMETHYLENEBENZENE: A DISJOINT NON‐KEKULE MOLECULE WITH A POSSIBLE SINGLET GROUND STATE (1985) (2)
- Chemistry of methylnorbornyl cations. I. Introduction and general survey (1967) (2)
- A vinyltrimethylenemethane intermediate in the 1,3-sigmatropic rearrangement of the 6-methylenebicyclo[3.1.0]hex-2-enyl system (1985) (1)
- Ethylenedione: Its Ions and Analogues (1989) (1)
- MECHANISTIC SEPARATION OF SINGLET AND TRIPLET REACTIONS OF A TRIMETHYLENEMETHANE, STEREOSPECIFICITY AND REGIOSPECIFICITY IN THE CYCLOADDITIONS OF 2‐ISOPROLYLIDENECYCLOPENTANE‐1,3‐DIYL TO OLEFINS (1974) (1)
- Deaminative and solvolytic ring expansion. Relative migratory aptitudes of ring members and .beta. substituents (1971) (1)
- Stabilization of a Putative Cyclohexane-1,4-diyl Intermediate Elicits an Antarafacial Cope Rearrangement via a Stepwise Mechanism. Pyrolysis of (R,E)-5-Methyl-1,2,6-octatriene to 4-Methyl-3-methylene-1,5- heptadiene. (2010) (1)
- 6-Methylenebicyclo[3.1.0]hex-3-en-2-yl cation, an isomer of benzyl cation (1986) (1)
- Apportionments of products from unsymmetrically substituted mesomeric carbonium ions (1960) (1)
- ASYMMETRIC INDUCTION AND ABSOLUTE CONFIGURATION IN THE BIPHENYL SERIES (1957) (1)
- Additions and Corrections-A Reexamination of the Diisohomogenol Structure (1950) (1)
- A Kinetically Stable Singlet State of 1,2,4,5-Tetramethylenebenzene. (1992) (1)
- Kinetics, Thermodynamics and the Problem of Selectivity: The Maturation of an Idea (2006) (1)
- Stereochemistry of the Thermal Homodienyl Hydrogen Shift Reverse Ene Reaction. Stereoelectronic Control of Stereogenicity Transfer Through the Anisotropic Influence of a Cyclopropane Ring. (1990) (1)
- THERMAL STEREOMUTATION OF OPTICALLY ACTIVE TRANS‐CYCLOPROPANE‐1,2‐D(2) (1975) (1)
- Shifting and Rearranging. Physical Methods and the Transformation of Modern Chemistry. By Carsten Reinhardt. (2007) (1)
- The First Magic Angle Spinning NMR Spectrum of a Captive Intermediate: Direct Observation of a Singlet Ground State Biradical, 3,4‐Dimethylenefuran. (1987) (1)
- Transient EPR and magnetophotoselection in the photolytic formation of a trimethylenemethane biradical (1984) (1)
- Stereochemistry of Additions of m-Quinomethane to Olefins and Acyclic Dienes. (1986) (0)
- Apportionments of products from unsymmetrically substituted carbonium ions (1960) (0)
- Catenation of Heterocyclic Non‐Kekule Biradicals to Tetraradical Prototypes of Conductive or Magnetic Polymers. (1997) (0)
- CHEMISTRY PROGRAM OF THE AIR FORCE OFFICE OF SCIENTIFIC RESEARCH. (1967) (0)
- Stereochemistry and Mechanism of the Reverse Ene Reaction of cis-2- Alkyl-1-alkenylcyclobutanes. Stereoselectronic Control in a System Showing Marginal Energetic Benefit of Concert. (1991) (0)
- II-Conjugated non-kelule molecules and the limits of Hund's rule (1990) (0)
- SEQUENTIAL MECHANISM IN THE OXIDATIVE DEMETALATION OF A TRIMETHYLENEMETHANE-IRON TRICARBONYL COMPLEX, TRICARBONYL(((1-3,6-η)-2-METHYLENECYCLOPENTANE-1,3-DIYL)IRON (1983) (0)
- Exclusion of a 1,4-Cyclohexenediyl as a Metastable Intermediate in the (3,3) Sigmatropic Rearrangement of a 1-Hexen-5-yne. (1988) (0)
- STEREOCHEMISTRY OF THE DIELS‐ALDER DIMERIZATION OF TRANS,TRANS‐PENTA‐1,3‐DIENE‐1‐D (1975) (0)
- m-Quinonoid Compounds (1989) (0)
- Book Review: The Origins of Creativity. Edited by Karl H. Pfenninger and Valerie R. Shubik (2002) (0)
- Direct Observation of a Hydrocarbon Singlet 1,3‐Biradical (II) by Picosecond Fluorescence Spectroscopy. (1982) (0)
- Geometry of the Transition State of the Decarbonylation of Bicyclo(2.2.1)hepta-2,5-dien-7-one. Experimental and ab initio Theoretical Studies. (1989) (0)
- Additions and Corrections - The Chemistry of Methylnorbornyl Cations. V. Solvent Capture and Hydride Shift in the 3-endo-Methyl Series (1967) (0)
- Ab initio Calculations on 1,2,4,5-Tetramethylenebenzene at Geometries Optimized by π-CI Calculations. Prediction of a Singlet Ground State for a Disjoint Diradical. (1986) (0)
- Time-resolved studies of molecular atomization by UV-multiphoton laser photolysis (1985) (0)
- EXPERIMENTAL TEST OF AN ALTERNATIVE HYPOTHESIS FOR ISOTOPE-POSITION SCRAMBLING IN THE PHOTOCHEMICAL WOLFF REARRANGEMENT OF AZIBENZIL (1981) (0)
- Additions and Corrections: Synthesis of Two Bis-m-quinomethanes. An Experimental Study of Connectivity Effects on the Equal-Parity Criterion for Low-Spin Ground States in Alternant Non-Kekule Molecules. (1986) (0)
- Absolute Rates of Dimerization and Cycloaddition of 3,4-Dimethylenefuran and 3,4-Dimethylenethiophene by Nanosecond Time-Resolved Spectroscopy. (1988) (0)
- CHEMISTRY OF BICYCLO(3.1.0)HEX-1-ENES CONTRASTED WITH THAT OF 2-ALKYLIDENECYCLOPENTANE-1,3-DIYLS (1982) (0)
- THE STEREOCHEMISTRY AND MECHANISM OF THE (SIGMA2+SIGMA2+SIGMA2) CYCLOREVERSION (1974) (0)
- Absolute Rates of Heterocyclic Singlet Biradical Reactions Determined by Nanosecond Time‐Resolved Absorption Spectroscopy. Dimerizations and Cycloadditions to Alkenes and to Dioxygen (1994) (0)
- Additions and Corrections - The Ring-Expansion Route to Bicyclic Carbonium Ions. II. The Multiple Rearrangement of the exo-2-Norbornylcarbinyl System (1964) (0)
- Heterocyclic Aromatic Non-Kekule Molecules. Synthesis and Solution-Phase Chemistry of the Singlet Biradicals 3,4-Dimethylenefuran and 3,4-Dimethylenethiophene. (1989) (0)
- Transition State Structure and Frontier Orbital Influence on the Cycloaddition Reactions of 2,5‐Dimethyl‐3,4‐dimethylenethiophene with Styrenes and Benzaldehydes. (1992) (0)
- GENERATION AND REACTIVITY OF STERICALLY HINDERED BICYCLO(3.1.0)HEX-1-ENES (1982) (0)
- MECHANISTIC CHARACTERIZATION OF THE INTERMEDIATES IN THE THERMAL AND PHOTOCHEMICAL DEAZETATION OF TWO ISOMERIC METHYLENEPYRAZOLINES, 7-ISOPROPYLIDENE-2,3-DIAZABICYCLO(2.2.1)HEPT-2-ENE AND 2,2-DIMETHYL-3,4-DIAZABICYCLO(3.3.0)OCTA-3,8-D (1981) (0)
- Ring-Inversion Barriers for the 3- and 4-Cyclohexenyl Radicals in Solution. (1988) (0)
- DIREKTE BLDG. VON METHYLENCYCLOPENTANEN DURCH CYCLOADDITION VON TRIMETHYLENMETHAN AN OLEFINE (1972) (0)
- Triplet Species from Dihydropyrrolo(3,4‐d)pyridazines, the Diazene Precursors of N‐Arenesulfonyl‐3,4‐dimethylenepyrroles. (2010) (0)
- Diels-Alder Reactions. Organic Background and Physico-Chemical Aspects (1966) (0)
- Chiral Pathways in the Thermal Rearrangement of 3,7-Dimethylene-1- ethyltricyclo(4.1.0.02,4)heptane to 2,5-Dimethylene-3-ethylbicyclo(4.1. 0)hept-3-ene. Decyclization of a Pair of 2,2′-Linked Methylenecyclopropanes Avoids a Symmetrical 2,5-Dimethylenecyclohept-3- ene-1,6-diyl Biradical Intermediate. (1991) (0)
- DIREKTE SYNTHESE VON CIS-ANTI-CIS-TRICYCLO(6,4,0,0(2,7))DODECATETRAEN (O,O′-DIBENZOL), THERMISCHE UMLAGERUNG EINES BLOCKIERTEN DIBENZOLS ZU EINEM (CH)12-KAEFIG-VORLAEUFER (1972) (0)
- HIGH-TEMPERATURE PATHWAYS ON THE ENERGY SURFACE CONNECTING A VINYLIDENE AND A TRIMETHYLENEMETHANE. GAS-PHASE GENERATION OF A BICYCLO(3.1.0)HEX-1-ENE AND A NOVEL CYCLIZATION OF A 1,2,5-TRIENE (1983) (0)
- Persistence of Stereospecificity of Thermal Homodienyl Hydrogen Shift Reverse Ene Reactions in Cyclobutane Systems. (1990) (0)
- STEREOCHEMICAL COURSE OF THERMAL CYCLOREVERSION OF (3.2.1)PROPELLANES TO 1,3-DIALKENYLCYCLOHEXANES (1984) (0)
- A Vinyltrimethylenemethane Intermediate in the 1,3-Sigmatropic Rearrangement of the 6-Methylenebicyclo[3.1.0]hex-2-enyl System. (1986) (0)
- Experiments, Models, Paper Tools. Cultures of Organic Chemistry in the Nineteenth Century. Von Ursula Klein. (2005) (0)
- COMPETING PATHWAYS IN THE PHOTOLYSIS OF BICYCLO(1.1.0)BUTANE (1985) (0)
- Chiral pathways in the thermal rearrangement of 3,7-dimethylene-1-ethyltricyclo[4.1.0.02,4]heptane to 2,5-dimethylene-3-ethylbicyclo[4.1.0]hept-3-ene. Decyclization of a pair of 2,2'-linked methylenecyclopropanes avoids a symmetrical 2,5-dimethylenecyclohept-3-ene-1,6-diyl biradical intermediate [Er (1991) (0)
- Parallel Reactivity Sequences in Cycloadditions of Singlet Biradicals and Diels-Alder Reactions. A Common Physical Basis Manifested as Entropy Control or Enthalpy Control. (1990) (0)
- Erich Hueckel, Pioneer of Organic Quantum Chemistry: Reflections on Theory and Experiment (1997) (0)
- THE CYCLOREVERSIONS OF DIAZABICYCLO(4.2.0)OCTENES, A TEST OF THE BENT BOND REQUIREMENT FOR CONCERT (1974) (0)
- Thermally Generated Benzanellated Trimethylenemethane Biradicals of the 2-Methylenecyclohexene-1,3-diyl Series Escape Capture by a New Rearrangement to Benzanellated Bicyclo(3.2.0)hept-1-enes. (1990) (0)
- 1-TERT-BUTYL-5-ISOPROPYLIDENEBICYCLO(2.1.0)PENTANE (1982) (0)
- TRISECTION OF REACTION PATHWAYS IN AUTOMERIZATION OF 6‐METHYLENEBICYCLO(3.2.1)OCT‐2‐ENE (1978) (0)
- 3,4-Dimethylenefuran and 3,4-Dimethylenethiophene, Heterocyclic Analogues of the Disjoint Non-Kekule Hydrocarbon Tetramethyleneethane. (1987) (0)
- CARBONIUM-ION-UMLAGERUNGEN VON BICYCLO(2,2,2)OCTYL-(2)-METHYL-DERIVATEN (1971) (0)
- New Trimethylenemethane Cycloaddition Mechanisms. Chemistry of 1-tert-Butyl- 5-isopropylidenebicyclo[2.1.0]pentane. (1986) (0)
- Remote Control of Stereogenicity Transfer by Ring-Generated Anisotropic Orbital Overlap. Stereochemistry of Hydrogen Shift in the Intramolecular Reverse Ene Reaction of a cis-2-Alkyl-1-alkenylcyclopropane. (1991) (0)
- Synthesis of Two Bis-m-quinomethanes. An Experimental Study of Connectivity Effects on the Equal-Parity Criterion for Low-Spin Ground States in Alternant Non-Kekule′ Molecules. (1986) (0)
- RESONANCE ENHANCED MULTIPHOTON IONIZATION OF FREE RADICALS IN A SUPERSONIC EXPANSION. NEW BANDS AND ROTATIONAL ANALYSIS FOR CH AND $CH_{2}$ (1985) (0)
- Reciprocal Tests of Steric Opposition to Down-Disrotatory Thermal Decyclization of (3.2.1)Propellanes. The Cycloreversion Stereochemistry of the 6,7,8-Trimethyltricyclo(3.2.1.01,5)octanes. (1989) (0)
- BICYCLO(3,1,0)HEXEN-(3)-YL-(2)-KATION (1971) (0)
- Stereochemistry of the Thermal Acetylenic Cope Rearrangement. Experimental Test for a 1,4-Cyclohexenediyl as a Mechanistic Intermediate. (1990) (0)
- Orbital Overlap Constraints in the Thermal Rearrangement of 3,7‐ Dimethylenetricyclo(4.1.0.02,4)heptane Derivatives. (1993) (0)
- Static Structure of a Regular Intermediate Controls the Course of the Thermal 1,3-Sigmatropic Rearrangement of 6-Methylenebicyclo(3.1.0)hex-2-enyl Derivatives. (1989) (0)
- Additions and Corrections: The Reaction of Ketene with Pyridine. (1957) (0)
- Two-Dimensional Solid-State NMR of a Captive Intermediate: Structure of the Radical Centers in 3,4-Dimethylenethiophene (1989) (0)
- Analysis of the Rate Retardation by 6 Substituents in exo-Norbornyl Solvolyses1 (1966) (0)
- 2,3,5,6‐Tetrakis(methylene)‐1,4‐cyclohexanediyl (1,2,4,5‐ Tetramethylenebenzene), a Disjoint Non‐Kekule Singlet Hydrocarbon Biradical. (1993) (0)
- Additions and Corrections - Direct Observation of a Hydrocarbon Singlet 1,3-Biradical by Picosecond Fluorescence Spectroscopy (1982) (0)
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