Highly efficient asymmetric transfer hydrogenation of ketones in emulsions
作者:Weiwei Wang、Zhiming Li、Wenbo Mu、Ling Su、Quanrui Wang
DOI:10.1016/j.catcom.2009.12.002
日期:2010.1
Ru-TsDPEN (TsDPEN = N-(p-tolylsulfonyl)-1,2-diphenylethylenediamine) catalyzed asymmetric transfer hydrogenation of ketones in emulsions is reported for the first time. The new protocol provides markedly enhanced activity and enantioselectivities (up to 99% ee) as compared with results when performed either in an aqueous medium or in common organic solvents.
Genetic Engineering ofStreptomyces coelicolor A3(2) for the Enantioselective Reduction of Unnaturalβ-Keto-Ester Substrates
作者:Christopher E. Anson、Maureen J. Bibb、Kevin I. Booker-Milburn、Cole Clissold、Patrick J. Haley、David A. Hopwood、Koji Ichinose、W. Peter Revill、G. Richard Stephenson、Chandres M. Surti