Chiral tertiary phosphines and process for their preparation
US5808163A · kind A · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Jul 17, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/5031
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to chiral tertiary alkyldiarylphosphines of the formula (I), ##STR1## where: R.sup.1 is (C.sub.1 -C.sub.4)alkyl, which can also be substituted by F, CF.sub.3, OCH.sub.3, PA1 Ar.sup.1, Ar.sup.2 are phenyl, naphthyl, anthracenyl, which can also bear one or more substituents selected from the group consisting of (C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy, CF.sub.3, F, PA1 * designates the chiral carbon atom which can have either an (R) or an (S) configuration, and also a process for preparing these compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.