Oxidative Addition of Alkenyl and Alkynyl Iodides to a Au
<sup>I</sup>
Complex
作者:Jamie A. Cadge、Hazel A. Sparkes、John F. Bower、Christopher A. Russell
DOI:10.1002/anie.202000473
日期:2020.4.16
intermolecular oxidative addition of alkenyl and alkynyl iodides to AuI are reported. Using a 5,5'-difluoro-2,2'-bipyridyl ligated complex, oxidative addition of geometrically defined alkenyl iodides occurs readily, reversibly and stereospecifically to give alkenyl-AuIII complexes. Conversely, reversible alkynyl iodide oxidative addition generates bimetallic complexes containing both AuIII and AuI centers. Stoichiometric
报道了烯基和炔基碘的分子间氧化加成到AuI的第一个分离的实例。使用5,5'-二氟-2,2'-联吡啶基连接的配合物,可以容易地,可逆地和立体定向地发生几何定义的烯基碘化物的氧化加成,从而得到烯基-AuIII配合物。相反,可逆的炔基碘化物的氧化加成生成同时含有AuIII和AuI中心的双金属配合物。化学计量学研究表明,两种新的引发方式都可以构成形成CC键的交叉偶联的基础。