Process for preparing optically active carboxylic acid
US5334758A · kind A · utility
2Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Sep 30, 1993 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing an optically active carboxylic acid is disclosed, comprising asymmetric hydrogenation of an .alpha.,.beta.-unsaturated carboxylic acid using an alcohol as a hydrogen donor in the presence of a metal-optically active phosphine complex. A carboxylic acid having high optical purity can easily be obtained in a high yield without using specific equipment as required in using hydrogen gas as a hydrogen donor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.