Synthesis of m-chloroacetophenone from benzoyl chloride

The synthesis of m-chloroacetophenone from benzoyl chloride includes the substitution reaction between benzoyl chloride and chlorine in the presence of composite catalyst of anhydrous iron trichloride and aluminium trichloride at normal pressure and minus 10 deg.c to 40 deg.c to produce m-chlorobenzoyl chloride; the reaction of magnesium, absolute ethyl alcohol and diethyl malonate in absolute ethyl ether solvent and in the presence of carbon tetrachloride as initiator to produce oxethyl magnesium diethyl malonate; the reaction of oxethyl magnesium diethyl malonate and m-chlorobenzoyl chloride in ethyl ether solvent to produce m-chlorobenzoyl diethyl malonate; and final hydrolysis and decarboxylation in acid water solution at 80-110 deg.c to produce m-chloroacetophenone.