Process for the preparation of diesters of dicarboxylic acids

摘要

Preparation of a diester of a dicarboxylic acid by reacting an unsaturated hydrocarbon having two carbon atoms less than the dicarboxylic acid, carbon monoxide and a nitrite ester with a solvent in the presence of a catalyst system formed by combining (1) a Group VIII noble metal compound and (2) a vanadium salt and/or a titanium salt.