A process for the co-production of an alkylidene dicarboxylate and a carboxylic acid.

摘要

A process for the co-production of an alkylidene dicarboxylate and a carboxylic acid, which comprises using as feedstock a carboxylic acid anhydride, and hydrogenating said anhydride in the presence of carbon monoxide and a homogeneous Group VIII metal catalyst together with a chloride, bromide or iodide and in the additional presence of a promotor.