Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 79
... substituents in the a- and B - positions respectively . The electronic spectra indicate that in the excited state the resonance stabilisation by the a - cyano - group is greater than that of the B - cyano - group to the extent of ca ...
... substituents in the a- and B - positions respectively . The electronic spectra indicate that in the excited state the resonance stabilisation by the a - cyano - group is greater than that of the B - cyano - group to the extent of ca ...
Page 730
... substituents on reaction rates as discussed above . The abnormal behaviour of the 4 - acetyl and 4 - cyano - substituents probably reflect a direct conjugative interaction with the reaction centre . The higher rate and pKa value for the ...
... substituents on reaction rates as discussed above . The abnormal behaviour of the 4 - acetyl and 4 - cyano - substituents probably reflect a direct conjugative interaction with the reaction centre . The higher rate and pKa value for the ...
Page 755
... substituents in the various positions of the ring . The treatment is reasonably successful in accounting for the substituent effects in alcohols of a wide range of polarity . The multiple correlation of log k , with polar and steric ...
... substituents in the various positions of the ring . The treatment is reasonably successful in accounting for the substituent effects in alcohols of a wide range of polarity . The multiple correlation of log k , with polar and steric ...
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