Simple chemoenzymatic access to enantiopure pharmacologically interesting (R)-2-hydroxypropiophenones
摘要:
A chemoenzymatic synthesis of pharmacological interesting (R)-2-hydroxypropiophenones starting from propiophenone derivatives is described. Manganese(III) acetate-mediated acetoxylation followed by fungus-mediated hydrolysis of propiophenone derivatives affords (R)-2-hydroxypropiophenones in high enantiomeric excess. (C) 2001 Elsevier Science Ltd. All rights reserved.
Simple chemoenzymatic access to enantiopure pharmacologically interesting (R)-2-hydroxypropiophenones
摘要:
A chemoenzymatic synthesis of pharmacological interesting (R)-2-hydroxypropiophenones starting from propiophenone derivatives is described. Manganese(III) acetate-mediated acetoxylation followed by fungus-mediated hydrolysis of propiophenone derivatives affords (R)-2-hydroxypropiophenones in high enantiomeric excess. (C) 2001 Elsevier Science Ltd. All rights reserved.
Biocatalytic racemization of synthetically important functionalized α-hydroxyketones using microbial cells
作者:Bettina M. Nestl、Anne Bodlenner、Rainer Stuermer、Bernhard Hauer、Wolfgang Kroutil、Kurt Faber
DOI:10.1016/j.tetasy.2007.06.005
日期:2007.7
Biocatalytic racemization of straight-chain and cyclic acyloins bearing (halo)alkyl, alkenyl and functionalized (hetero)aryl moieties was accomplished using whole resting cells of bacteria, fungi and yeasts. Mild physiological reaction conditions ensured the suppression of undesired side-reactions, such as elimination or condensation. This biocatalytic protocol represents a useful tool for the clean racemization of unwanted enantiomers of synthetically important alpha-hydroxyketones derived from kinetic resolution. (c) 2007 Elsevier Ltd. All rights reserved.