Process for the preparation of substituted glyoxylic acid...

Details Process for the preparation of substituted glyoxylic acid... Process for the preparation of substituted glyoxylic acid...

C - Chemistry, Metallurgy

07

C

260/295, 260/361

C07C 69/76 (2006.01) C07D 213/55 (2006.01) C07D 333/24 (2006.01)

Patent

CA 1173448

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.

389784

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