Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 242
... estimated by group additivity.8 Group contributions for the radicals were estimated from the heats of form- ation listed by Kerr . The following values ( in kcal./ mole ) were obtained : [ ċ- ( H ) 2 ( C ) ] , 36 · 8 ; [ Ċ- ( H ) ( C ) ...
... estimated by group additivity.8 Group contributions for the radicals were estimated from the heats of form- ation listed by Kerr . The following values ( in kcal./ mole ) were obtained : [ ċ- ( H ) 2 ( C ) ] , 36 · 8 ; [ Ċ- ( H ) ( C ) ...
Page 474
... estimated by Pearson and Dillon 43 and based on data on the rate of deuterium exchange.44 The most serious deviation is for the carbamoyl group . According to Figure 2 , acetamide should have a pK , of 27-7 instead of the estimated 43 ...
... estimated by Pearson and Dillon 43 and based on data on the rate of deuterium exchange.44 The most serious deviation is for the carbamoyl group . According to Figure 2 , acetamide should have a pK , of 27-7 instead of the estimated 43 ...
Page 690
... Estimated rate parameters for radical chain steps Re- action Ref . are E ~ D ( C - Br ) a As quoted in ref . ¿ Estimated from similar reactions ; 12 Estimated from similar reactions c 1 step log10 A 13.0 E 67,000 k at 327 ° 3.6 x 10-12 ...
... Estimated rate parameters for radical chain steps Re- action Ref . are E ~ D ( C - Br ) a As quoted in ref . ¿ Estimated from similar reactions ; 12 Estimated from similar reactions c 1 step log10 A 13.0 E 67,000 k at 327 ° 3.6 x 10-12 ...
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