Preparation of alkyl silanes
US4973724A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 1, 1989 |
| Grant date | Nov 27, 1990 |
| Priority date | — |
| Expiry date | May 1, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0805
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A silahydrocarbon functional fliud comprising a mixture of silahydrocarbons of the formula RSiR'.sub.3, wherein the R' radicals may be alike or different, is prepared by a three step process. In the first step in a preferred embodiment, sodium, aluminum, hydrogen, and olefin (corresponding to the radical R') are reacted in the presence of a triorganoaluminum catalyst. In a second step, fresh catalyst is added and reaction is continued. In a third step, the product of the second step is reacted with a trihaloalkylsilane to produce the RSiR'.sub.3 product. Such a product satisfied the U.S. Air Force specification for silahydrocarbon base stock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.