作者:Heiko Maas、Corinne Bensimon、Howard Alper
DOI:10.1021/jo970562+
日期:1998.1.1
The Lewis acid-catalyzed addition of aziridines to ketenimines gave substituted pyrrolidonimines in 47-87% yields. The hard Lewis acid LiClO(4) proved to be superior to the soft [(PhCN)(2)PdCl(2)], affording higher yields under milder conditions. The reaction is regioselective and occurs with complete stereoselectivity using [(PhCN)(2)PdCl(2)] and with a small amount of racemization in the case of
路易斯酸催化的氮丙啶向酮亚胺的添加以47-87%的产率得到取代的吡咯烷亚胺。事实证明,硬路易斯酸LiClO(4)优于软[[PhCN)(2)PdCl(2)],在较温和的条件下可提供较高的收率。该反应是区域选择性的,使用[[PhCN](2)PdCl(2)]具有完全的立体选择性,并且在LiClO(4)的情况下具有少量的消旋作用。