Process for the synthesis of tertiary phosphine oxides and sulphides, and new tertiary phosphine oxides and sulphides
US4447584A · kind A · utility
5Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1982 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Jan 18, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/40
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to processes for the synthesis of tertiary phosphine oxides and sulphides. The process according to the invention consists, in a first step, of reacting a secondary phosphine oxide or sulfide with an optionally activated alkali metal amide, and, in a second step, of reacting the mixture obtained in the first step with an organic halide containing at least one halogenophenyl radical or one halogenomethyl group. Tertiary phosphine oxides and sulphides are complexing agents of high stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.