Quarterly Journal of the Chemical Society of London, Volume 6 |
From inside the book
Results 1-3 of 84
Page 1177
... involving general base catalysis by a second water molecule . The entropy of activation is very low , -35-6 e.u. for the 2,4 - dinitrophenyl ester , in the region associated with reactions of this type , such as the neutral hydrolysis ...
... involving general base catalysis by a second water molecule . The entropy of activation is very low , -35-6 e.u. for the 2,4 - dinitrophenyl ester , in the region associated with reactions of this type , such as the neutral hydrolysis ...
Page 1182
... involving intra- molecular nucleophilic catalysis . Salicylic acid cyclic phosphate is identified as an intermediate on the reaction pathway . The reaction is remarkably stereospecific for displacement of the exocyclic group , and an ...
... involving intra- molecular nucleophilic catalysis . Salicylic acid cyclic phosphate is identified as an intermediate on the reaction pathway . The reaction is remarkably stereospecific for displacement of the exocyclic group , and an ...
Page 1186
... involving displacement at phosphorus in reactions involving five - membered cyclic transition states ; 18,19 Hamer 19 has described a case in which an intramolecular displacement on a phosphoram- idate which would involve a six ...
... involving displacement at phosphorus in reactions involving five - membered cyclic transition states ; 18,19 Hamer 19 has described a case in which an intramolecular displacement on a phosphoram- idate which would involve a six ...
Contents
ISOWA 013 | 1034 |
Physical organic chemistry | 1035 |
Studies of the reactions of the anhydrosulphites of ahydroxycarboxylic acids Part IV Steric | 1044 |
26 other sections not shown
Other editions - View all
Common terms and phrases
2,4-dinitrophenyl absorption acetic acid aci-anion acid anhydrosulphite adducts alcohol aluminium hydride Amer amines aqueous aromatic atom attack bands benzene benzophenones benzyl bond calculated carbon tetrachloride carbonyl catalysis Chem chloride compounds concentration conformation corresponding decomposition dioxan dipole effect electron electrophilic equation ester ethanol ether ethylene experimental Figure first-order formation hydrogen hydrolysis hydroxide hydroxyl interaction ionic strength isomer k₁ k₂ ketone kinetic leaving group measured mechanism methyl methyl phosphate mixture molar Kerr constants mole mole-¹ molecular molecules nitrogen nitromethane NO₂ nucleophilic observed obtained oxidation oxyanions peroxide persulphate phenyl phenylacetic acid phosphate plots polarisability proton pyridine R. J. W. Le Fèvre R. O. C. Norman radical anion rate constants ratio reaction reactivity rearrangement reduction ring rotation similar sodium solution solvent solvolysis spectra spectrum splitting constants steric structure substituent sulphate radical anion Table temperature tetraphenylallene thiophen titanium(III values Δε ΣΔε/Σω