An environmentally friendly procedure for Mukaiyama aldol and Mukaiyama–Michael reactions using a catalytic amount of DBU under solvent- and metal-free conditions
作者:Zhi-Liang Shen、Shun-Jun Ji、Teck-Peng Loh
DOI:10.1016/j.tetlet.2004.11.099
日期:2005.1
Mukaiyama aldol and Mukaiyama–Michael reactions can proceed smoothly in the presence of a catalytic amount of DBU (20% mmol), to afford the corresponding products in moderate to good yields. This solvent- and metal-free approach provides an environmentallyfriendly procedure for Mukaiyama reactions.
Coupling of permeabilized microorganisms for efficient enantioselective reduction of ketone with cofactor recycling
作者:Jie Zhang、Bernard Witholt、Zhi Li
DOI:10.1039/b515721h
日期:——
A novel, simple and efficient cofactor recycling method for enantioselectivebioreduction has been developed by the use of permeabilizedcells of a reductase-containing microorganism and a glucose dehydrogenase-containing microorganism
Process for preparing 3-heteroaryl-3-hydroxypropanoic acid derivatives
申请人:Berendes Frank
公开号:US20060264641A1
公开(公告)日:2006-11-23
The invention relates to a process for preparing enantiomer-enriched 3-heteroaryl-3-hydroxypropanoic acid derivatives and 3-heteroaryl-1-aminopropan-3-ols, and to their use.
Rapid identification of new bacterial alcohol dehydrogenases for (R)- and (S)-enantioselective reduction of ß-ketoesters
作者:Jie Zhang、Wouter A. Duetz、Bernard Witholt、Zhi Li
DOI:10.1039/b407004f
日期:——
New bacterial alcohol dehydrogenases with high and complementary enantioselectivity for the reduction of ethyl 3-keto-4,4,4-trifluorobutyrate 1 and methyl 3-keto-3-(3′-pyridyl)-propionate 3 have been rapidly identified by use of a new methodology consisting of preselection of microorganisms based on degradation ability and high-throughput screening with a miniaturized system coupled with fast analysis of enantioselectivities.