Metal‐Free Oxidative Cross Coupling of Indoles with Electron‐Rich (Hetero)arenes
作者:Paola Caramenti、Raj Kumar Nandi、Jerome Waser
DOI:10.1002/chem.201802142
日期:2018.7.17
A new method for the synthesis of bi‐heteroaryls is reported, based on the umpolung of indoles with benziodoxol(on)e hypervalentiodinereagents (IndoleBX). The oxidative coupling of IndoleBX with an equimolar amount of electron‐rich benzenes, indoles, pyrroles, and thiophenes proceeded under mild transition‐metal‐free conditions. Functionalized non‐symmetrical bi‐indolyl heterocycles were accessed