Process for the manufacture of m-halobenzoyl halides

Details Process for the manufacture of m-halobenzoyl halides Process for the manufacture of m-halobenzoyl halides

1978-09-21

1980-02-26

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 6312

Patent

active

041906004

ABSTRACT:
m-Halobenzoyl halides are prepared by chlorinating or brominating benzoyl chloride or benzoyl bromide in the absence of a solvent and in the presence of FeCl.sub.3 or FeBr.sub.3 as the catalyst and of sulfur and/or at least one inorganic and/or organic sulfur compound as the cocatalyst, at a temperature of from about 0.degree. to 90.degree. C. The compounds are valuable starting products and intermediates for the manufacture of dyestuffs, pharmaceuticals and plant protectives.

REFERENCES:
patent: 3996274 (1976-12-01), Jurewicz
Friedel-Crafts and Related Reactions, Editor Olah, vol. 1, pp. 214-215, 309-311, 365; vol. III, part 2, pp. 1555-1556, (1963).

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