Method for production of 2,3,4,5-tetrafluorobenzoic acid

Details Method for production of 2,3,4,5-tetrafluorobenzoic acid Method for production of 2,3,4,5-tetrafluorobenzoic acid

1986-03-07

1988-09-06

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

C07C 5138

Patent

active

047694920

ABSTRACT:
A method for the production of 2,3,4,5-tetrafluorobenzoic acid, which comprises effecting said production by decarbonating 3,4,5,6-tetrafluorophthalic acid in an aqueous medium adjusted to a pH in the range of 0.7 to 2.2 at a temperature in the range of 100.degree. to 220.degree. C.

REFERENCES:
patent: 3150163 (1964-09-01), Plummer
Yakobson, Chem. Abst., 64: 12124h (1966).
Kirk-Othmer, Encyclopedia of Chemical Technology, Supp., 1971, pp. 590-598.

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