Cyclic Amination onto Aromatic Ring via Radical Pathway with (Diacetoxyiodo)arenes

Sulfonamides of primary amine bearing an aromatic ring at γ-position were treated with (diacetoxyiodo)arene and iodine under irradiation conditions with a tungsten lamp to give the corresponding 1,2,3,4-tetrahydroquinoline derivatives in moderate to good yields.