Formation of alkylsilanes
US4670574A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1986 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Sep 18, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0896
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Silane and monoalkylsilanes can be alkylated using an alkali metal aluminate, MAlR.sub.4, wherein M is Li, Na, or K and each R is a straight chain, alkyl radical solely composed of carbon and hydrogen containing from about 4 to about 18 carbon atoms. The aluminate can be used as a reactant, optionally in the presence of a straight chain alpha-olefin corresponding to the alkyl group in the aluminate. Alternatively, the aluminate can be used as a catalyst for the reaction of the olefin and the silane reactant, in which case from about 5 to about 10 mole percent of the aluminate (based on the silane reactant) is employed. The catalytic reaction is promoted by a smaller amount of a lithium salt such as lithium chloride. Both embodiments are conducted at somewhat elevated temperatures, approximately 160.degree.-210.degree. C., and at autogenous pressures, using reaction times of 8-20 hours. The products are useful as functional fluids or as intermediates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.