| 摘要 |
A process for the dehydrohalogenation of a (polyhaloalkyl)benzene containing a benzylic halogen such as 1, 3-dichloro- 5-(1,3,3,3-tetrachloro-I -methylpropyl)benzene by contacting the (polyhaloalkyl)benzene with a suitably active Lewis acid catalyst such as SbCl5 or TiCl4, neat or supported, under conditions sufficient to catalyze the dehydrohalogenation to form a (polyhaloalkenyl)benzene such as 3,5-dichloro- alpha -(2,2,2-trichloroethyl)styrene. |
