Michael Addition Initiated Carbocyclization Sequences with Nitroolefins for the Stereoselective Synthesis of Functionalized Heterocyclic and Carbocyclic Systems
作者:Estelle Dumez、Anne-Catherine Durand、Martial Guillaume、Pierre-Yves Roger、Robert Faure、Jean-Marc Pons、Gaëtan Herbette、Jean-Pierre Dulcère、Damien Bonne、Jean Rodriguez
DOI:10.1002/chem.200901433
日期:2009.11.16
The synthesis of various heterocycles and carbocycles (tetrahydrofurans, pyrrolidines, cyclopentanes) has been achieved by using new and efficient ionic addition/cyclization sequences. Nitroolefins play an important role in the Michael addition induced ring‐closing reactions (MIRC) reported in the present article, with various substituted alcohols, amines, Grignard reactants, or malonate derivatives
各种杂环和碳环(四氢呋喃,吡咯烷,环戊烷)的合成已通过使用新型高效的离子加成/环化序列来实现。硝基烯烃在本文报道的迈克尔加成诱导的闭环反应(MIRC)中起着重要作用,各种取代的醇,胺,格利雅(Grignard)反应物或丙二酸酯衍生物可作为亲核试剂。优化的级联反应在大多数情况下是高收率的和高度立体选择性的,从非手性底物开始可建立多达三个立体异构中心。