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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4-nitroaniline A. R. Katritzky acetic acid activation energy alcohol Amer amine anion aqueous aromatic aryl-methyl ation axial benzene bond bond dissociation energies bromination calculated carbanion carbon acids catalyst Chem chemical shifts Chemistry chloride compounds concentration conformation corresponding coupling constants crystal cyclohexane derivatives deviations dilute dimethyl sulphoxide dipole electron equation ether ethylene experimental Figure fluorene formation fraction H₂O hydrocarbons hydroxide increase indicators interactions intermediate ionisation isomer isomerization isotope effect k₁ k₂ kcal kcal./mole kinetic Mc./sec measured mechanism methanol methyl mixture mole mole-¹ molecular molecules n.m.r. spectra nitrogen nucleophilic observed obtained oxide oxygen parameters phenyl Phys piperidine proton pyridines R. P. Bell radical rate constants ratio reaction relative ring selenophen shown shows signal sodium solution solvent spectrum structure substituted t-butyl Table temperature Tetrahedron thiophen transition tri-o-thymotide triethylamine triphenylmethane wave