One-Pot Synthesis of Optically Enriched 2-Piperidinones from Aliphatic Aldehydes and Cyanoacrylamides
作者:Ying He、Tai-Ran Kang、Quan-Zhong Liu、Lian-Mei Chen、Yi-Lian Tu、Ya-Jun Liu、Tang-Bin Chen、Zhi-Qiang Wang、Jie Liu、Yong-Mei Xie、Jin-Liang Yang、Long He
DOI:10.1021/ol401951g
日期:2013.8.16
A highly stereoselective one-pot reaction of aliphatic aldehydes and cyanoacrylamides has been developed. The one-pot reaction includes an organocatalytic Michael addition followed by an intramolecular hemiaminalization. After reduction, optically enriched 2-piperidinones with three contiguous chiral centers were obtained in up to 95% yield and 9:1 dr with 99% ee.