Amine-substituted biphenyldiphosphines
US7589196B2 · kind B2 · utility
4Cited by
3References
6Claims
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Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Aug 2, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/827
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,1′-Biphenyl-2,2′-diphosphines having at least one amine substituent in the para position relative to the phosphine group and having the formulaeare ligands for metal complexes which serve as catalysts for asymmetric addition reactions of prochiral organic compounds and whose catalytic properties can be tailored specifically to particular substrates by substitution of the amine group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.