Corrigendum: Synthesis of 2H‐Indazoles via Tandem Palladium‐Catalyzed Deacylative Cross‐Coupling and Denitrogenative Cyclization of 2‐Iodoazoarenes and 2‐Iodoaryltriazenes with Acyldiazoacetates in One‐Pot

Abstract

A synthetic method to prepare a wide range of 2H-indazoles was developed via a tandem palladium-catalyzed deacylative cross-coupling reaction of 2-iodoazoarenes and 2-iodoaryltriazenes with acyldiazoacetates and denitrogenative cyclization reaction of in situ generated diazoacetates having azoaryl and triazenylaryl moieties in one-pot. Additionally, azoaryl-substituted diazoacetates underwent palladium-catalyzed denitrogenative cyclization to produce 2H-indazoles. The present reaction is a good example in which a Pd(0)-catalyst is involved in two catalytic cycles in one-pot.