Process for the preparation of O-acylglycolanilides

Details Process for the preparation of O-acylglycolanilides Process for the preparation of O-acylglycolanilides

1995-08-03

1998-01-06

Shaver, Paul F.

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

Organic compounds

Carboxylic acid esters

560106, 560110, 558392, 558393, 558414, C07C 6702, C07C 6976, C07C25500

Patent

active

057056803

ABSTRACT:
The present invention relates to a process for the preparation of O-acylglycolanilides of the formula (1) ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are hydrogen, halogen, a nitro group, a cyano group, a straight-chain or branched alkyl, alkenyl, alkynyl or alkoxy group having from 1 to 12 carbon atoms, an aralkyl group having from 7 to 12 carbon atoms, a cycloalkyl group having from 6 to 12 carbon atoms or an aryl group having from 6 to 12 carbon atoms,. R.sup.3 is hydrogen or a straight-chain or branched alkyl group having from 1 to 12 carbon atoms, and R.sup.4 is an alkyl group having from 1 to 6 carbon atoms or is a substituted or unsubstituted phenyl radical, in which an aniline of the formula (2) ##STR2## in which R.sup.1, R.sup.2 and R.sup.3 have the same meaning as in formula (1), and an O-acylglycolic acid of the general formula (3) ##STR3## in which R.sup.4 has the same meaning as in formula (1), are reacted with an inorganic acid halide, optionally in the presence of an inert organic solvent, at from 20.degree. to 180.degree. C.

REFERENCES:
patent: 4509971 (1985-04-01), Forster et al.
European Search Report No. 95111896.7, Nov. 15, 1995.

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