Enantioselective oxazaborolidine catalysts
US6037505A · kind A · utility
5Cited by
4References
5Claims
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Inventor
Key dates
| Filing date | Apr 26, 1999 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Apr 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The anantoselective borane reduction of prochiral ketones to optically pure alcohols is effectively achieved by performing the reduction in the precence of catalytic amounts of the new and valuable oxazaborolidine compounds of formulas (I) and (II). The compounds of formulas (I) and (II) may be isolated and purified prior to use in the reduction reactions or the compounds of formulas (I) and (II) may be generated in situ. ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.