Process of manufacturing dichloroacetyl chloride

Details Process of manufacturing dichloroacetyl chloride Process of manufacturing dichloroacetyl chloride

C - Chemistry, Metallurgy

07

C

260/539.6

C07C 51/58 (2006.01)

Patent

CA 1048057

IN THE UNITED STATES PATENT OFFICE PROCESS OF MANUFACTURING DICHLOROACETYL CHLORIDE Abstract of the Disclosure An improved process for the pro- duction of dichloroacetyl chloride by liquid phase photooxidation of trichloroethylene with oxygen or air in the presence of a catalytic amount of free chlorine or bromine to yield a mix- ture of dichloroacetyl chloride and trichloro- ethylene oxide is disclosed herein. The improvement in the process being conducting the reaction in the presence of a catalytic amount of primary or secondary amides, preferably dimethylformamide, which causes the trichloroethylene oxide to re- arrange exothermically to dichloroacetyl chloride.

231659

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