Process for preparing 3-chloroanthranilic alkyl esters of high p

Details Process for preparing 3-chloroanthranilic alkyl esters of high p Process for preparing 3-chloroanthranilic alkyl esters of high p

1995-05-24

1996-09-17

Geist, Gary

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

Organic compounds

Carboxylic acid esters

C07C22956

Patent

active

055570054

ABSTRACT:
Process for preparing 3-chloroanthranilic alkyl esters by reacting 3-chloroanthranilic acid, in an inert solvent, with from 0.8 to 5 parts by weight of phosgene, and reacting the 3-chloroisatoic anhydride which is formed with an alkanol, where appropriate in the presence of an esterification catalyst, to give the 3-chloroanthranilic alkyl ester.

REFERENCES:
patent: 4261996 (1981-04-01), Sircar et al.
patent: 4306074 (1981-12-01), Tonne et al.
patent: 4316020 (1982-02-01), Reissenweber
patent: 4486221 (1984-12-01), Seybold et al.
patent: 5068392 (1991-11-01), McKendry et al.
patent: 5118832 (1992-06-01), Pearson
Deutsche Chemische Gesellschaft Chemische Berichte, Bd. 32, 1898 pp. 2159-2172.

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