Dehydrohalogenation of (polyhaloalkyl)benzenes
US4188346A · kind A · utility
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6References
6Claims
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Assignee
Inventor
Key dates
| Filing date | May 18, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | May 18, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/35
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the dehydrohalogenation of a (polyhaloalkyl)benzene containing a benzylic halogen such as 1,3-dichloro-5-(2,4,4,4-tetrachlorobutyl)benzene by contacting the (polyhaloalkyl)benzene with a suitably active Lewis acid catalyst such as SbCl.sub.5 or TiCl.sub.4 under conditions sufficient to catalyze said dehydrohalogenation to form a (polyhaloalkenyl)benzene such as 3,5-dichloro-.alpha.-(2,2,2-trichloroethyl)styrene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.