公开(公告)号：DE3166723D1

公开(公告)日：1984-11-22

申请号：DE3166723

申请日：1981-10-29

Applicant: STAMICARBON

Inventor： CORVERS ANTONIUS ,  VAN DEN BROEK CORNELIS WILHELM ,  SUVERKROPP GEERTRUDES HERMAN

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 ,  C07C102/00

Abstract: A process for preparing substituted glyoxylic acid derivatives by oxidizing with a molecular oxygen containing gas an amide or ester of a hydroxy acid in the presence of a catalytic amount of a cobalt compound.