H. Kakiuchi, T. Endo
Apr 1, 1967
Citations
0
Influential Citations
5
Citations
Journal
Bulletin of the Chemical Society of Japan
Abstract
The rates of reaction between benzoic acid and phenyl glycidyl ether in the presence of pyridine in toluene, nitrobenzene, various ethers, and mixed solvents as reaction solvents, are measured kinetically, and the following results obtained: (1) The rates are proportional to the concentrations of benzoic acid, phenyl glycidyl ether, and pyridine. (2) Plots of log A vs. the concentration of benzoic acid give a linear relation in toluene-nitrobenzene, but not in nitrobenzene-dioxane. (3) The energies and entropies of the activation increase as dioxane increases in the mixed solvents, toluene-dioxane and nitrobenzene-dioxane. (4) This reaction follows the isokinetic relationship in the mixed solvents. (5) The plots of the rate constants, k3 vs. the pKb of the ethers indicate a straight-line relation. (6) Both the complex ion and the free ion participate in the reaction; the contribution of the free ion to this reaction is proportional to the dielectric constants of the solvents.