PREPARATION OF .ALPHA.-CHLOROALKYL ARYL KETONES

摘要

A process for preparing .alpha.-chloroalkyl aryl ketones of the general formula I where n is 1 to 5, R1 independently of one another are H, alkyl, alkoxy, aryl, aryloxy, acyloxy, acylamino, halogen yr nitro, R2,3 independently of one another are H, alkyl or aryl, by chlorination of alkyl aryl ketones of the general formula II with sulfuryl chloride is described, the chlorination being car- ried out in-the presence of an aliphatic alcohol.