Process for preparing tertiary diarylalkylphosphines
US5527967A · kind A · utility
7Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 24, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | May 24, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B3/25
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing phosphines ##STR1## where, for example R.sup.1 is (C.sub.1 -C.sub.10)alkyl, (C.sub.3 -C.sub.10)cycloalkyl, C(YZ)aryl Y, Z is (C.sub.1 -C.sub.4)alkyl, hydrogen, Aryl is phenyl, naphthyl, anthracenyl, phenanthrenyl, or biphenyl, binaphthyl and PA1 R.sup.2, R.sup.3 are, independently of one another, phenyl, naphthyl or anthracenyl, by reacting a diarylphosphine ##STR2## where X is bromine, chlorine, fluorine, (C.sub.1 -C.sub.4)alkoxy, O-phenyl, with a reducing agent and a quaternary ammonium compound ##STR3## where A is an anion of an organic or inorganic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.