Chemical process for obtaining high purification of monoalkylarsines and dialkylarsines and purified mono- and dialkylarsines
US4900855A · kind A · utility
5Cited by
1References
7Claims
0Family size
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Key dates
| Filing date | Dec 14, 1988 |
| Grant date | Feb 13, 1990 |
| Priority date | — |
| Expiry date | Dec 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/72
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is provided for highly pure mono- and dialkylarsines, particularly removing substantially all silicon-containing impurities. A mono- or dialkylarsine is reacted with either an alkali metal or an alkali metal hydrocarbyl, thereby producing an alkali metal alkylarsenide. Silicon, germanium, zinc and other metallic impurities are removed from the alkali alkylarsenide. Mono- and dialkylarsine is then regenerated by reaction of the alkali metal alkylarsenide with a proton donor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.