Stereodivergency in Catalytic Asymmetric Conjugate Addition Reactions of Glycine (Ket)imines
作者:Hun Young Kim、Jian-Yuan Li、Sungkyung Kim、Kyungsoo Oh
DOI:10.1021/ja2100356
日期:2011.12.28
catalytic asymmetric conjugatereactions of glycine (ket)imines with nitroalkenes have been achieved using various chiral catalyst systems derivedfrom a multidentate amino alcohol (1). The stepwise nature of the [3 + 2] cycloaddition reactions of N-metalated azomethine ylides has also been demonstrated by highly enantio- and diastereoselective syntheses of exo-5 and endo-8 from the respective syn-4