Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof
US6683208B2 · kind B2 · utility
0Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Mar 3, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/822
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
New optically active bis[1-phospha-2,3-diphenyl-4,5-dimethylnorbornadiene] diphosphines and new optically active transition metal complexes with said phosphines are described. The complexes are useful as catalysts to promote hydrogenation of substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.