Methods of preparing low molecular weight carbosilanes and precursors thereof
US9181283B2 · kind B2 · utility
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Key dates
| Filing date | Nov 4, 2014 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Nov 4, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0896
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A series of silicon compounds are provided, which are excellent precursors to small carbosilanes, such as 1,3,5-trisilapentane, 2,4,6-trisilaheptane, tris(silylmethyl)silane and tetrakis(silylmethyl)silane. A method of preparing a carbosilane involves forming a Grignard, lithium, or metallic reagent from a halomethyltrialkoxysilane, reacting the Grignard, lithium, or metallic reagent with a dihalodihydridosilane, a trihalohydridosilane, a tetrahalosilane, a dialkoxydihydridosilane, a trialkoxyhydridosilane, or a tetraalkoxysilane to yield a carbosilane precursor, and reducing the precursor to form the carbosilane.
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