Preparation of chiral catalysts based on ruthenium and phosphorus complexes
US5324850A · kind A · utility
8Cited by
2References
17Claims
0Family size
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Key dates
| Filing date | Feb 21, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Feb 21, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/821
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for the preparation of a chiral catalyst, comprised of an organic complex of ruthenium and phosphorus, consisting in heating a complex of ruthenium with a phosphine, within an organic liquid, inert in relation to substances in presence, the heated complex being based on a diene and an allylic compound; the product obtained following the heating is subjected to the action of an acid in an organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.