A Three-Component Reaction Based on a Remote-Group-Directed Dynamic Kinetic Aza-Michael Addition: Stereoselective Synthesis of Imidazolidin-4-ones
作者:Zhenghu Xu、Tyler Buechler、Kraig Wheeler、Hong Wang
DOI:10.1002/chem.200903508
日期:2010.3.8
with an aldehyde and a Michael acceptor to form stable imidazolidin‐4‐ones with high stereoselectivity. A dynamic kinetic aza‐Michael addition was discovered and applied to the three‐component reaction to enforce high stereoselectivity. A remote group was incorporated to invert the reaction process and direct the reaction towards the desired product (see scheme).
对照:α-氨基酰胺与醛和迈克尔受体反应,形成稳定的咪唑烷定-4-酮,立体选择性高。发现了动态动力学的氮杂-迈克尔加成反应,并将其应用于三组分反应以实现高立体选择性。并入一个远程基团以反转反应过程并将反应导向所需的产物(参见方案)。