An Efficient Copper(I) IodideCatalyzed Synthesis of Diaryl Selenides through CAr-SeBond Formation Using Solvent Acetonitrile as Ligand

A wide range of diaryl selenides can be synthesized through C Ar ―Se bond formation using readily available copper(I) iodide as catalyst under mild reaction conditions (82 °C) from aryl iodides and diphenyl diselenide. In this coupling reaction, solvent acetonitrile acts as ligand for copper(I) iodide and no external ligand is required. Less reactive aryl bromides also provide the diaryl selenides in good isolated yields.