Process to produce silyl ketene acetals
US4783543A · kind A · utility
7Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Nov 23, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/188
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of silyl ketene acetals of the formula, EQU R.sub.2 C.dbd.C(OSiR.sub.n X.sub.3-n)(OZ) or ##STR1## The process comprises contacting an alpha-ester of a carboxylic acid with an alkali metal in the presence of an excess of an organohalosilane, wherein the alpha-ester has the formula, ##STR2## and the organohalosilane has the formula, EQU R.sub.n SiX.sub.4-n ; and facilitating reaction among the alpha-ester, the alkali metal, and the organochlorosilane to form the silyl ketene acetal and an alkali metal halide or an alkali metal alkoxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.