Pd-Catalyzed Ligand-Free Synthesis of Arylated Heteroaromatics by Coupling of <i>N</i>‑Heteroaromatic Bromides with Iodobenzene Diacetate, Iodosobenzene, or Diphenyliodonium Salts WangXiajun HeYongqin RenMengdan LiuShengkang LiuHe HuangGuosheng 2016 An efficient method for synthesizing arylated heteroaromatics has been reported via Pd-catalyzed ligand-free cross-coupling of <i>N</i>-heteroaromatic bromides with iodine­(III) reagents under mild conditions. Iodobenzene diacetate, iodosobenzene, and diphenyliodonium salts act as ideal arylated sources in this reaction, producing bioactive aromatic-substituted pyridines and quinolines in moderate to high yields.