Easy Access to Aryl- and Heteroaryl-Annulated[a]carbazoles by the Indium-Catalyzed Reaction of 2-Arylindoles with Propargyl Ethers

摘要

Aryl- and heteroaryl-annulated[a]carbazoles constitute an attractive class of compounds in view of their biological and pharmacological activities that result from their special affinity toward DNA.Among them,indolo[a]carbazoles,which are found in many natural products,seem to be the most intriguing,and thus numerous studies on their activities and synthetic methodologies have been reported.