作者:Reema K. Thalji、Kateri A. Ahrendt、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/jo050757e
日期:2005.8.1
dihydroindoles, and other polycyclic aromatic compounds is presented. Cyclization of aromatic ketimines and aldimines containing alkenyl groups tethered at the meta position relative to the imine directing group has been achieved using (PPh3)3RhCl (Wilkinson's catalyst). The cyclization of a range of aromatic ketimines and aldimines provides bi- and tricyclic ring systems with good regioselectivity. Different ring
提出了一种直接的CH键活化方法,用于合成茚满,四氢萘,二氢呋喃,二氢吲哚和其他多环芳族化合物。使用(PPh 3)3 RhCl(Wilkinson's催化剂)已经实现了在相对于亚胺定向基团的间位上束缚有链烯基的芳族酮亚胺和醛亚胺的环化。一系列芳香酮亚胺和醛亚胺的环化为双环和三环系统提供了良好的区域选择性。可以通过单取代的1,1-或1,2-二取代的和三取代的烯烃同时带有富电子和缺电子的官能团来获得不同的环尺寸和取代方式。