Lipase-catalyzed kinetic resolution of α,β-unsaturated α′-acetoxy ketones
摘要:
The lipase-catalyzed kinetic resolutions of the alpha,beta-unsaturated alpha'-acetoxy ketones 3a,b have been investigated. Of the lipases examined, CAL-B from Candida antarctica (fraction B) has been shown to be an efficient biocatalyst, which may be used effectively in preparative scale reactions. (C) 1998 Elsevier Science Ltd. All rights reserved.
Enantiogenic synthesis of (R)-(−)-3-hydroxy-1-penten-4-one
作者:Toshinari H. Kurniadi、Rachid Bel Rhlid、Marcel A. Juillerat、Martin Schüler、Ralf G. Berger
DOI:10.1016/s0957-4166(02)00800-5
日期:2003.2
Condensation of pyruvate and acrolein with whole cells of baker's yeast resulted in a mixture of 3-hydroxy-1-penten-4-one 1 and 4-hydroxy-1-penten-3-one 2. The absolute configuration (R) and the enantiomeric excess (ee 72%) of the compound 1 were determined. (C) 2003 Elsevier Science Ltd. All rights reserved.