<i>syn</i>-Selective Catalytic Asymmetric 1,4-Addition of α-Ketoanilides to Nitroalkenes under Dinuclear Nickel Catalysis
作者:Yingjie Xu、Shigeki Matsunaga、Masakatsu Shibasaki
DOI:10.1021/ol101185p
日期:2010.7.16
A syn-selective catalytic asymmetric 1,4-addition of α-ketoanilides to nitroalkenes is described. The homodinuclear Ni2-Schiff base 1b complex was suitable for the reaction, and products were obtained in 61−92% yield, 8.3:1 → 20:1 syn-selectivity, and 72−98% ee. Stereoselective transformation of the 1,4-adduct to a trisubstituted pyrrolidine was also performed.
描述了α-酮基苯胺到硝基烯烃的顺-选择性催化不对称的1,4-加成。的同双核的Ni 2 -Schiff碱1b中复合物适用于该反应,并在61-92%的产率得到产品,8.3:1→20:1顺式选择性,和72-98%ee的。还进行了1,4-加合物向三取代吡咯烷的立体选择性转化。