Patent ID: 9012680
Filing Date: 2015-04-21
Classification: C07C

Abstract:
1. A process for preparing an ester of formula (I): wherein n is 1-3 and R by hydrogenation of a reactant selected from the group consisting of: (a) a lactone of formula (II) wherein n is 1-3 and R (b) an ester of a carboxylic acid of formula (III) wherein n is 1-3 and R c) a carboxylic acid of formula (IV) wherein n is 1-3 and R wherein the reactant is contacted with a heterogeneous catalyst comprising a hydrogenating metal in the presence of hydrogen, said catalyst is a zeolite-free heterogeneous catalyst comprising a hydrogenating metal supported on a metal oxide or a mixed oxide, and wherein the product comprises ester according to formula (I) and unesterified carboxylic acid precursor in a weight ratio of ester according formula (I) to unesterified carboxylic acid precursor of more than 1:5.