Divergent synthesis of indole-fused polycycles via Rh(II)-catalyzed intramolecular [3 + 2] cycloaddition and C-H functionalization of indolyltriazoles

Abstract

Rh(ii)-catalyzed divergent synthesis of polycyclic indolines and azepino[4,5-b]indoles through intramolecular [3 + 2] cycloaddition and C-H functionalization of indoles with N-sulfonyl 1,2,3-triazoles is described. The reaction pathways are controlled by the substituent type of indole.