TRANSESTERIFICATION PROCESS USING MIXED SALT ACETYLACETONATES CATALYSTS

摘要

This invention is directed to a general catalyst of high activity and selectivity for the production of a variety of esters, particularly acrylate and methacrylate-based esters, by a transesterification reaction. This objective is achieved by reaction of an ester of a carboxylic or a carbonic acid, in particular of a saturated or unsaturated, typically, a 3 to 4 carbon atom carboxylic acid; with an alcohol in the presence of a catalyst consisting of a metal 1,3-dicarbonyl complex and a salt, in particular an inorganic salt. These catalysts are prepared from readily available starting materials within the reaction medium without the need for isolation (in-situ preparation).