Effects of hydrochloric acid upon the kinetics and mechanism of hydrolysis of para-substituted benzoic anhydrides in dioxan–water

Abstract

Kinetic data on the title reaction lead to conclusions similar to those obtained previously for hydrolyses catalysed by perchloric acid, namely a change in the reaction mechanism from A2 to A1 occurs as the acidity and the temperature increase. The two acids however catalyse the hydrolyses to different extents and their specific effects on the reaction rate depend upon the nature of the substituent group, the temperature, and the hydrolysis mechanism involved.