Patent ID: 8865931

Claim:
A process for the transesterification of an ester of a carboxylic or a carbonic acid, comprising reacting the ester of the carboxylic or carbonic acid with an alcohol in the presence of a catalyst consisting of a mixture of a metal 1,3-dicarbonyl complex with an inorganic salt, wherein the metal 1,3-dicarbonyl complex consists of metal acetylacetonates represented by formula wherein n=1, 2 or 3; R 1 is C1-C4 alkyl, phenyl or substituted phenyl; R 2 is hydrogen, C1-C4 alkyl, phenyl or substituted phenyl; R 3 is C1-C4 alkyl, phenyl or substituted phenyl; and M represents a metal cation selected from the group consisting of lithium, zinc and iron.