Use of active polyester intermediates in the preparation of acid-labile benzyl esters of some phenolic carboxylic acids

Abstract

2,4,6-Trimethylbenzyl and other acid-labile esters of various nitro- and chloro-substituted phenolic carboxylic acids have been prepared by imidazole-assisted alcoholysis of stable, insoluble 'active polyester' intermediates obtained by the action of N,N'-dicyclohexylcarbodiimide on the parent acids.