Preparation of halopropyldimethylchlorosilanes
US6359161B2 · kind B2 · utility
9Cited by
4References
3Claims
0Family size
Assignee
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Key dates
| Filing date | May 11, 2001 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | May 11, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A halopropyldimethylchlorosilane is prepared by reacting dimethylchlorosilane with an allyl halide in the presence of an iridium catalyst. The reaction is effected in the presence of an internal olefin compound, typically 1,5-cyclooctadiene. The internal olefin compound suppresses deactivation of the iridium catalyst during reaction. Using a smaller amount of the iridium catalyst, the process produces the halopropyldimethylchlorosilane in high yields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.