公开(公告)号：US20020016483A1

公开(公告)日：2002-02-07

申请号：US09863460

申请日：2001-05-24

Applicant: Kao Corporation

Inventor： Takashi Aoki ,  Shinji Kotachi ,  Taku Mimura ,  Junji Koshino

IPC: C07C069/675

CPC classification number: B01J23/80 ,  C07C67/31 ,  C07C69/675

Abstract: The present invention provides a process for producing hydroxycarboxylic acid esters easily, further at a high reaction selectivity, by using an inexpensive catalyst. That is, the present invention provides a process for producing hydroxycarboxylic acid esters, which comprises hydrogenating dicarboxylic acid diesters having 3 to 20 carbon atoms in the dicarboxylic acid moiety in the presence of a copper catalyst comprising 1 to 40% by weight of copper as copper oxides.