PROCESS FOR PRODUCING 3-BROMOBENZOYL HALIDES

摘要

Meta-bromination with suppression of para-bromination is achieved by forming a reaction mixture comprised of: i) bromine chloride; ii) a bromination catalyst; and iii) a benzoyl halide, and maintaining the temperature of the resultant reaction mixture at one or more temperatures above 0 DEG C, but not greater than 30 DEG C. The bromine chloride is preferably formed in situ, most preferably by sparging gaseous chlorine into a mixture of bromine, finely-divided iron, and benzoyl chloride.