Microwave-assisted Synthesis of Diaryl Selenides. Elucidation of Cu(I)-catalyzed Reaction Mechanism
作者:Irina P. Beletskaya、Alexander S. Sigeev、Alexander S. Peregudov、Pavel V. Petrovskii、Victor N. Khrustalev
DOI:10.1246/cl.2010.720
日期:2010.7.5
A novel microwave-assisted cross-coupling of trialkyltin arylselenides 1 with arylbromides using [(phen)CuI]2 afforded unsymmetrical diarylselenides 3 in high to excellent yields. A plausible catalytic cycle for Cu(I)-catalysed cross-coupling has been proposed. A key intermediate in this catalytic cycle was synthesized and its structure was determined by X-ray diffractometry.
利用[(phen)CuI]2,在新型微波辅助下将三烷基锡芳基硒化物 1 与芳基溴化物进行交叉偶联,得到了不对称的二芳基硒化物 3,收率高至极佳。提出了一种 Cu(I)催化交叉偶联的合理催化循环。我们合成了该催化循环中的一个关键中间体,并通过 X 射线衍射测定法确定了其结构。