Iodine-Mediated Intramolecular Electrophilic Aromatic Cyclization in Allylamines: A General Route to Synthesis of Quinolines, Pyrazolo[4,3‑<i>b</i>]pyridines, and Thieno[3,2‑<i>b</i>]pyridines BatchuHarikrishna BhattacharyyaSoumya BatraSanjay 2012 An unprecedented synthesis of aromatic ring annulated pyridines from suitably substituted primary allylamines via intramolecular electrophilic aromatic cyclization mediated by molecular iodine under mild conditions is described.