Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1995-06-21
1997-05-20
Kumar, Shailendra
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
564201, C07C23305, C07C23388
Patent
active
056314035
ABSTRACT:
The present invention relates to a process for the preparation of hydroxycarboxanilides 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 1 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms, a cycloalkyl group having 6 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms, R.sup.3 is hydrogen or a straight-chain or branched alkyl group having 1 to 12 carbon atoms and n is an integer from 1 to 12, by reacting a halocarboxanilide of the formula (2) ##STR2## in which R.sup.1, R.sup.2, R.sup.3 and n have the same meaning as in formula (1) and Hal is chlorine, bromine or iodine, with a basic compound in a solvent mixture comprising water and one or more polar aprotic solvents at a temperature of 40.degree. to 180.degree. C.
REFERENCES:
patent: 4219681 (1980-08-01), Schwenk et al.
patent: 4334073 (1982-06-01), Diehr
patent: 4440780 (1984-04-01), Chan
patent: 4500740 (1985-02-01), House
European Search Report No. 95109415, Aug. 11, 1995.
Dierdorf Andreas
Papenfuhs Theodor
Planker Siegfried
Hoechst AG
Kumar Shailendra
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