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Biocatalytic kinetic resolution of rac ‐1‐phenylethanol and rac ‐2‐pentanol in hexane medium: ACYL donor and water content effects
Author(s) -
de los Ríos A. P.,
HernándezFernández F. J.,
TomásAlonso F.,
Gómez D.,
Víllora G.
Publication year - 2010
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20285
Subject(s) - kinetic resolution , candida antarctica , chemistry , transesterification , hexane , lipase , ethyl butyrate , enzyme , selectivity , vinyl acetate , organic chemistry , water activity , enantioselective synthesis , catalysis , stereochemistry , chromatography , water content , copolymer , polymer , geotechnical engineering , engineering , ethyl acetate
The kinetic resolutions of rac ‐1‐phenylethanol and rac ‐2‐pentanol by transesterification with vinyl esters catalysed by a commercial immobilised Candida antarctica lipase B were successfully carried out in hexane medium. This enzyme showed very high enantioselectivity for both substrates. The influence of the water content of the medium on the synthetic activity, selectivity and enantioselectivity of the enzyme was analysed, with the optimal amount of water about 100 ppm. Our results also showed that the activity per gram enzymatic derivate of CaLB was slightly higher with butyl butyrate as acyl donor.