Visible‐Light‐Induced Direct C−H Amination of Quinoxalin‐2(1H)‐ones

Abstract A visible‐light‐induced direct C( sp 2 )−H amination of quinoxalin‐2(1 H )‐ones toward the synthesis of substituted 3‐aminoquinoxalin‐2(1 H )‐ones with TMSN 3 has been firstly developed. This transformation achieved C( sp 2 )−H/N−H coupling in the absence of external ligand and oxidant. Notably, this methodology features mild reaction conditions, broad substrate scope and operational simplicity. magnified image