Magnesium-Induced Copper-Catalyzed Synthesis of Unsymmetrical Diaryl Chalcogenide Compounds from Aryl Iodide via Cleavage of the Se−Se or S−S Bond
作者:Nobukazu Taniguchi、Tetsuo Onami
DOI:10.1021/jo030300+
日期:2004.2.1
diaryl chalcogenide compounds from aryl iodides and diphenyl dichalcogenide molecules is reported. Unsymmetrical diaryl sulfide or diaryl selenide can be synthesized from aryl iodide and PhYYPh (Y = S, Se) with a copper catalyst (CuI or Cu2O) and magnesium metal in one pot. This reaction can be carried out under neutral conditions according to an addition of magnesium metal as the reductive reagent. Furthermore
A light-mediated C−Se bond coupling reaction of arylhalides with diselenides under mild photocatalyst-free conditions for preparing aryl selenoethers has been achieved. The transformation is charactered by readily available materials, mild conditions, broad substrate scope and high efficiency. A reasonable mechanism has been proposed based on the preliminary mechanistic investigation. The protocol