Method for production of optically active (+)-4,4,4-trifluoro-3-

Details Method for production of optically active (+)-4,4,4-trifluoro-3- Method for production of optically active (+)-4,4,4-trifluoro-3-

1996-03-15

1997-08-05

Haley, Jacqueline

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20918

Patent

active

056544405

ABSTRACT:
An optically active (+)-4,4,4-trifluoro-3-(indole-3-)butyric acid is produced by a method which consists essentially of causing 2,2,2-trifluoroethanol to react on a racemic modification 4,4,4-trifluoro-3-(indole-3-)butyric acid thereby forming a reaction solution containing the trifluoroethyl ester of the butyric acid, causing an enzyme having an esterase activity to act on the reaction solution thereby forming an optically active (+)-4,4,4-trifluoro-3-(indole-3-)butyric acid, and thereafter separating the reaction product from the reaction solution.

REFERENCES:
patent: 5496794 (1996-03-01), Katayama et al.
patent: 5578552 (1996-11-01), Katayama et al.
Katsuya Kato, et al., "Enzymatic Preparation of Both Enantiomers of 4,4,4-Trifluoro-3-(Indole-3-)Butyric Acid, a Novel Plant Growth Regulator", Journal of Fermentation and Bioengineering, vol. 76, No. 3, (pp. 178-183), 1993.

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