PREPARATION OF BOTH ENANTIOMERS OF ETHYL 4,4,4-TRIFLUORO-3-HYDROXY BUTANOATE BY ENANTIOSELECTIVE MICROBIAL REDUCTION

被引:8
作者
GUERRERO, A
RAJA, F
机构
关键词
D O I
10.1016/S0960-894X(01)81046-5
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
The effect of some parameters, i.e. temperature, time, pH and concentration, on the baker's yeast reduction of ethyl 4,4,4-trifluoroacetoacetate is presented. The enantiomeric excess of the R enantiomer appeared to increase up to 76% when the temperature of the reduction decreased. The other factors do not appear to improve the enantioselectivity of the reaction. Reduction with Candida utilis allowed preparation of the S enantiomer in higher optical purity than previously reported.
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页码:675 / 678
页数:4
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