Electrochemical Regioselective C-3 Alkoxycarbonylation of 2H-Indazoles

This study describes an efficient electrochemical synthetic method for C-3 alkoxycarbonylation of 2H-indazoles with carbazates under constant current in an undivided cell without the need for external oxidants or metal catalysts. This methodology exhibits broad functional group compatibility, affording the products with good yields. Easy scalability and drug diversification demonstrate the synthetic efficacy and applicability of this protocol.