Dehydrohalogenation of (polyhaloalkyl) benzenes

Details Dehydrohalogenation of (polyhaloalkyl) benzenes Dehydrohalogenation of (polyhaloalkyl) benzenes

C - Chemistry, Metallurgy

07

C

260/652, 260/610

C07C 25/24 (2006.01)

Patent

CA 1118455

Abstract A process for the dehydrohalogenation of a (polyhaloalkyl)benzene containing a benzylic halogen such as 1,3-dichloro-5-(1,3,3,3-tetrachloro-1-methyl- propyl)benzene by contacting the (polyhaloalkyl)benzene with a suitably active Lewis acid catalyst such as SbCl5 or TiCl4, under conditions sufficient to catalyze the dehydrohalogenation to form a (polyhaloalkenyl)- benzene such as 3,5-dichloro-a-(2,2,2-trichloroethyl)- styrene. 26,164-F

336836

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