Preparation of 2-chloroterephthaloyl chloride

Details Preparation of 2-chloroterephthaloyl chloride Preparation of 2-chloroterephthaloyl chloride

1990-06-26

1991-03-26

Killos, Paul J.

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

Organic compounds

Carboxylic halides

562866, C07C 5158

Patent

active

050031058

ABSTRACT:
A process for preparing 2-chloroterephthaloyl chloride which comprises reacting terephthaloyl chloride with chlorine in the presence of an anhydrous ring chlorination catalyst. When the reaction mixture contains the desired amount of the monochloro product, the mixture is cooled to room temperature and the 2-chloroterephthaloyl chloride is isolated.

REFERENCES:
patent: 3833652 (1974-09-01), Knobloch
patent: 4308216 (1981-12-01), Freitag et al.
Journal of Chemical Society, vol. 121, p. 2510 (1922).
Journal of the American Chemical Society, vol. 70, p. 3518 (1948).

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