Process for tetrafluorobenzoic acid

Details Process for tetrafluorobenzoic acid Process for tetrafluorobenzoic acid

1986-05-07

1988-11-01

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

562480, 260544F, C07C 5138

Patent

active

047821809

ABSTRACT:
An improved process for the preparation of 2,3,4,5-tetrafluorobenzoic acid is described which involves decarboxylation of tetrafluorophthalic acid in the presence of a base catalyst. Also described is an improved method for preparing tetrafluorophthalic acid and, in turn, a one-pot process for tetrafluorobenzoic acid using the combination of the two improvements.

REFERENCES:
patent: 2439237 (1948-04-01), Cass
Chem. Abstracts, vol. 76, Abstract No. 45887e, (1972), Chen et al.
Zhurnal Obshchei Khimii; G. C. Yakobson, et al.; 36 (1), pp. 139-142, (1966).

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