Lipase-mediated diastereoselective and enantioselective acetylations of 3-substituted cyclohexanols
摘要:
Lipase-mediated acetylation of four diastereomeric and enatiomeric isomers of 3-substituted cyclohexanols 2 has led to an efficient resolution to provide a single stereoisomer, (1R,3S)-cyclohexyl acetate (1R,3S)-3 in a high enantiomeric excess. (C) 1998 Elsevier Science Ltd. All rights reserved.
Lipase-mediated diastereoselective and enantioselective acetylations of 3-substituted cyclohexanols
摘要:
Lipase-mediated acetylation of four diastereomeric and enatiomeric isomers of 3-substituted cyclohexanols 2 has led to an efficient resolution to provide a single stereoisomer, (1R,3S)-cyclohexyl acetate (1R,3S)-3 in a high enantiomeric excess. (C) 1998 Elsevier Science Ltd. All rights reserved.
Photo-biocatalytic One-Pot Cascades for the Enantioselective Synthesis of 1,3-Mercaptoalkanol Volatile Sulfur Compounds
作者:Kate Lauder、Anita Toscani、Yuyin Qi、Jesmine Lim、Simon J. Charnock、Krupa Korah、Daniele Castagnolo
DOI:10.1002/anie.201802135
日期:2018.5.14
The synthesis of enantiomerically pure 1,3‐mercaptoalkanol volatile sulfur compounds through a one‐pot photo‐biocatalytic cascade reaction is described. Two new KRED biocatalysts with opposite enantioselectivity were discovered and proved to be efficient on a wide range of substrates. The one‐pot cascade reaction combining photocatalytic thio‐Michael addition with biocatalytic ketoreduction in an aqueous