公开(公告)号：CA1173448A

公开(公告)日：1984-08-28

申请号：CA389784

申请日：1981-11-10

Applicant: STAMICARBON

Inventor： CORVERS ANTONIUS ,  VAN DEN BROEK CORNELIS W ,  SUVERKROPP GEERTRUDES H

IPC: C07C67/40 ,  B01J23/00 ,  B01J23/75 ,  C07B61/00 ,  C07C51/373 ,  C07C67/00 ,  C07C67/313 ,  C07C69/738 ,  C07C201/00 ,  C07C205/55 ,  C07C205/61 ,  C07C231/00 ,  C07C231/12 ,  C07C233/11 ,  C07C235/78 ,  C07D213/55 ,  C07D333/06 ,  C07D333/24 ,  C07C69/76

Abstract: The invention relates to a process for the preparation of substituted glyoxylic acid derivatives by the oxidation of an amide or ester of a hydroxy acid, having the general formula R-CHOH-COOH, in the liquid phase containing cobalt as catalyst, with an oxygen-containing gas and recovering the corresponding amide or the corresponding ester of glyoxylic acid having the general formula R-CO-COOH.