Method of producing a glycolic acid ester

Details Method of producing a glycolic acid ester Method of producing a glycolic acid ester

1994-03-10

1995-10-03

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 69675

Patent

active

054553725

ABSTRACT:
A glycolic acid ester is produced by hydrogenating an oxalic acid diester of the formula, (COOR).sub.2, wherein R is a C.sub.1-6 alkyl group, with hydrogen in the presence of a solid catalyst comprising, for example, copper and silver metals carried on a solid carrier, and in the additional presence of an aliphatic alcohol, and collecting the resultant glycolic acid ester from the reaction mixture by distillation, preferably in the presence of an ester of a C.sub.3-12 dicarboxylic acid.

REFERENCES:
patent: 4112245 (1978-09-01), Zehner et al.
patent: 4409395 (1983-10-01), Miyazaki et al.
patent: 4585890 (1986-04-01), Miyazaki et al.

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