Patent ID: 6936730

Claim:
A process for producing a hydrogenated ester by hydrogenating an unsaturated group-containing ester represented by formula (3) by using a hydrogenating catalyst wherein the hydrogenating catalyst is a compound comprising at least one element selected from the group consisting of Group 8 elements, Group 9 elements and Group 10 elements in the periodic table a according to Nomenclature of Inorganic Chemistry, Revised Edition, 1989, International Union of Pure and Applied Chemistry, so as to produce a hydrogenated ester corresponding to the unsaturated group-containing ester, wherein the concentration of a carboxylic acid in a raw material containing the unsaturated group-containing ester represented by formula (3) is 1 wt. % or less: wherein R 1 , R 2 , R 3 , R 4 and R 5 denote an arbitrary alkyl group containing 1-10 carbon atoms, a arbitrary alkenyl group containing 2-10 carbon atoms, or a hydrogen atom and may be the same as or different from each other; the alkyl group and alkenyl group may be either straight-chain or branched; R 6 represents a C1-C10 alkyl group.