Quarterly Journal of the Chemical Society of London, Volume 1 |
From inside the book
Results 1-3 of 79
Page 264
... isotope effect upon elimination with the isotopic rate constants for elimination and exchange , obtained from a kinetic analysis of the in- duction periods for reaction of ( Ih ) in D2O or ( Id ) in H2O . The comparison can be made with ...
... isotope effect upon elimination with the isotopic rate constants for elimination and exchange , obtained from a kinetic analysis of the in- duction periods for reaction of ( Ih ) in D2O or ( Id ) in H2O . The comparison can be made with ...
Page 265
... isotope effect upon the ionization step , k1 / k1 = 7 · 2 , is compensated by that on the reverse reaction , k_ / k_1D . In this case , a solvent isotope effect of less than , or close to , unity is to be expected , and its observation ...
... isotope effect upon the ionization step , k1 / k1 = 7 · 2 , is compensated by that on the reverse reaction , k_ / k_1D . In this case , a solvent isotope effect of less than , or close to , unity is to be expected , and its observation ...
Page 794
... isotope effects between 1.5 and 2-3 have been reported for pinacol rearrangements 10 and solvolyses.11 Larger isotope effects of between 4 and 9 for the isomeriz- ation of protonated hexamethylbenzene 12 in HF - BF3 between -40 ° and ...
... isotope effects between 1.5 and 2-3 have been reported for pinacol rearrangements 10 and solvolyses.11 Larger isotope effects of between 4 and 9 for the isomeriz- ation of protonated hexamethylbenzene 12 in HF - BF3 between -40 ° and ...
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 |
25 other sections not shown
Other editions - View all
Common terms and phrases
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