Process for purifying vinylically-unsaturated organosilicon compounds
US5138081A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Apr 30, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for purifying an impure vinylically-unsaturated organosilicon product compound prepared by reaction between a vinylically-unsaturated organosilicon precursor and a halogenated organic compound in the presence of a homogeneous zerovalent palladium catalyst complex, the catalyst complex including an organophosphine or organoarsine ligand, in the presence of a hydrogen halide acceptor in an essentially anhydrous diluent, comprising treating a mixture containing the impure vinylically-unsaturated organosilicon product compound with a peroxide for a time sufficient to oxidize organophosphine or organoarsine impurities present in a mixture being treated. The peroxide can be selected from aqueous hydrogen peroxide or organic peroxides. The thus-treated mixture can be further treated by chromatography over silica gel or alumina. In optional embodiments, chromatography over silica gel or alumina can precede treatment with the peroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.