Oxidative Addition of Alkenyl and Alkynyl Iodides to a AuI Complex
Oxidative Addition of Alkenyl and Alkynyl Iodides to a AuI Complex
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DOI：
10.1002/anie.202000473
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发表时间：
2020-03-02
影响因子：
16.6
通讯作者：
Russell, Christopher A.
中科院分区：
文献类型：
--
作者：
Cadge, Jamie A.;Sparkes, Hazel A.;Russell, Christopher A.
第一个孤立的例子，分子间氧化加成的烯基和炔基碘金-I的报告。使用5，5 '-二氟-2，2'-联吡啶配位络合物，容易地、可逆地和立体特异性地发生几何限定的烯基碘的氧化加成，得到烯基-Au-III络合物。相反，可逆的炔基碘氧化加成生成含Au-III和Au-I中心的双金属络合物。化学计量研究表明，这两种新的引发模式可以形成的基础上发展的C-C键形成交叉耦合。
The first isolated examples of intermolecular oxidative addition of alkenyl and alkynyl iodides to Au-I 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-Au-III complexes. Conversely, reversible alkynyl iodide oxidative addition generates bimetallic complexes containing both Au-III and Au-I centers. Stoichiometric studies show that both new initiation modes can form the basis for the development of C-C bond forming cross-couplings.