Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 260
... mechanism , but is of the right magnitude for an E1cB mechanism . H D E H D For an E1cB mechanism , k / kD corresponds to the isotope effect upon ionization of 9 - fluorenylmethanol to form the carbanion , and use of the Swain - Schaad ...
... mechanism , but is of the right magnitude for an E1cB mechanism . H D E H D For an E1cB mechanism , k / kD corresponds to the isotope effect upon ionization of 9 - fluorenylmethanol to form the carbanion , and use of the Swain - Schaad ...
Page 272
... mechanism , and that formation of the carbanion is rate- determining , or that there is a change in mechanism from ElcB to E2 . H Of these possibilities , reaction via the carbanion seems the more likely . One piece of evidence is the ...
... mechanism , and that formation of the carbanion is rate- determining , or that there is a change in mechanism from ElcB to E2 . H Of these possibilities , reaction via the carbanion seems the more likely . One piece of evidence is the ...
Page 369
... mechanism of catalysis suggested by Snell . However , all the accepted mechanisms of catalysis require a base or nucleophile at some stage , and the amidation discussed above for the model systems suggests that an amino - group may act ...
... mechanism of catalysis suggested by Snell . However , all the accepted mechanisms of catalysis require a base or nucleophile at some stage , and the amidation discussed above for the model systems suggests that an amino - group may act ...
Contents
Physical organic chemistry | 1 |
Topochemistry Part XXX Crystal and molecular structures of chalcone | 11 |
Conformational studies Part I Crystal and molecular structures of cis12dipchlorobenzoyl and cis | 17 |
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A. R. Katritzky alcohol alkyl Amer anion aqueous aromatic ation axial benzene bond bromination calculated carbanion carbon acids carbon atom carbon tetrachloride carbonyl catalyst Chem chemical shifts Chemistry chloride complex compounds concentration conformation correlation coupling constants crystal cyclohexane derivatives difference dilute dimethyl sulphoxide dioxan electron elimination energy equation equatorial equilibrium ester ethanol ether experimental Figure fluorene formation fraction H₂O H₂SO hydrogen hydrolysis hydroxide indicators interaction intermediate ionisation isomer isomerization isotope effect k₁ k₂ kcal kcal./mole kinetic measured mechanism methyl mixture mole mole-¹ molecular molecule n.m.r. spectra nitration nitrogen nucleophilic observed obtained oxide oxime oxygen parameters phenyl Phys piperidine plot proton pyridines R. P. Bell radical rate constants ratio reaction reactivity ring shown shows sodium solution solvent spectrum structure substituents sulphuric acid t-butyl Table temperature Tetrahedron thiophen transition values