Enantioselective Syntheses of Bicyclic Lactams Based on Iridium-Catalyzed Asymmetric Allylic Substitution and Heck Cyclization
作者:Gedu Satyanarayana、Günter Helmchen
DOI:10.1002/ejoc.201301813
日期:2014.4
A sequence of reactions that include an iridium-catalyzed regio- and enantioselective allylic amination, the formation of an amide, a ruthenium-catalyzed ring-closing metathesis, and an intramolecular Heck reaction allows for the preparation of [3,3,1]- and [4,3,1]-bicyclic amides. The target compounds have a nitrogen atom at the bridgehead, a nonplanar amide moiety, and a stereogenic center at the
一系列反应包括铱催化的区域选择性和对映选择性烯丙基胺化、酰胺的形成、钌催化的闭环复分解和分子内 Heck 反应,可以制备 [3,3,1]- [4,3,1]-双环酰胺。目标化合物在桥头处有一个氮原子,在一个碳桥上有一个非平面的酰胺部分和一个立体中心。