Direct and Regioselective C(sp3)–H Bond Fluorination of 2-Alkylazaarenes with Selectfluor

Herein, a regioselective and direct monofluorination strategy of pyridylic and quinolinic C(sp3)–H bonds was developed under transition-metal-free conditions with Selectfluor. The reaction was performed under smooth conditions and afforded fluorinated azahetero­cycles including 2-methylpyridines and -quinolines in moderate to good yields.