Chiral nitrogen-phosphorus ligands and their use for asymmetric hydrogenation of alkenes
US8946418B1 · kind B1 · utility
8Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2014 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Jul 9, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2231/64
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a series of novel chiral nitrogen-phosphorus ligands of formulae (Ia) and (Ib):wherein R1-R3 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral nitrogen-phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydrogenation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.