Copper(II)‐Catalyzed Selective Para Amination of Arylamine with Pyrazole by C−H Functionalization

Abstract A coordinating activation strategy for selective para amination of arylamine with pyrazole is developed. Various substrates are compatible, giving the corresponding products in moderate to good yields. This strategy provides a practical solution for the efficient synthesis of arylamine‐containing pharmacophores from simple starting materials. A single electron transfer mechanism is suggested for this reaction.