Method for producing optically active cyclopropane carboxylic acid
US5180671A · kind A · utility
5Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Jan 19, 1993 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P7/40
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present relates to a process for preparing optically active cyclopropane carboxylic acid derivatives of salts thereof represented by the formula (III) ##STR1## wherein X is chlorine atom, bromine atom, methyl group or trifluoromethyl group and R' is hydrogen atom or metal ion, by asymmetrically hydrolyzing cyclopropane carboxylic acid esters having the formula (II) ##STR2## wherein X is as defined above and R is C.sub.1-4 alkyl group or halogen-substituted C.sub.1-4 alkyl group with specific strains of microorganisms or esterase derived therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.