Biotransformations of Racemic 2,3-Allenenitriles in Biphasic Systems: Synthesis and Transformations of Enantioenriched Axially Chiral 2,3-Allenoic Acids and Their Derivatives
作者:Yu-Fei Ao、De-Xian Wang、Liang Zhao、Mei-Xiang Wang
DOI:10.1021/jo500228z
日期:2014.4.4
Catalyzed by Rhodococcus erythropolis AJ270 whole cells in an aqueous phosphate buffer–n-hexane biphasic system, racemic axially chiral 2,3-allenenitriles underwent hydrolysis to afford enantioenriched (aR)-2,3-allenamides and (aS)-2,3-allenoic acids with ee’s up to >99.5%. Overall biotransformations proceeded through the nitrile hydratase-catalyzed efficient but nonselective hydration of nitriles