Cu-catalyzed direct C-H amination of 2-alkylazaarenes with azodicarboxylates via nucleophilic addition

An efficient Cu-catalyzed C-H amination of 2-alkylazaarenes with azodicarboxylates has been developed through nucleophilic addition of sp3C-H bond to unsaturated nitrogen-nitrogen double bond. It provides an easy access to azaarene-containing hydrazines from simple and easily available starting materials.