The activation mechanism of Ru-indenylidene complexes in olefin metathesis.
The activation mechanism of Ru-indenylidene complexes in olefin metathesis.
复制标题
Ru-茚基配合物在烯烃复分解反应中的活化机制。
DOI：
--
复制
发表时间：
2013
影响因子：
15
通讯作者：
S. Nolan
中科院分区：
文献类型：
--
作者：
César A. Urbina;A. Poater;T. Lebl;Simone Manzini;A. Slawin;L. Cavallo;S. Nolan
烯烃复分解是形成碳碳双键的有力工具。在过去的20年里，已经开发出了几个性质明确的钌催化剂家族；然而，所有这些配合物的反应机制被认为是相同的。本研究考察了ru -独立基配合物的引发机理，并与苯基配合物的引发机理进行了比较。研究发现，并不是所有的独立乙烯基配合物都遵循相同的机制，这突出了所谓的旁观者配体的空间和电子性质的重要性，并且钌基烯烃的复分解反应没有单一的机制。实验结果得到了DFT计算的定量支持。
Olefin metathesis is a powerful tool for the formation of carbon-carbon double bonds. Several families of well-defined ruthenium (Ru) catalysts have been developed during the past 20 years; however, the reaction mechanism for all such complexes was assumed to be the same. In the present study, the initiation mechanism of Ru-indenylidene complexes was examined and compared with that of benzylidene counterparts. It was discovered that not all indenylidene complexes followed the same mechanism, highlighting the importance of steric and electronic properties of so-called spectator ligands, and that there is no single mechanism for the Ru-based olefin metathesis reaction. The experimental findings are supported quantitatively by DFT calculations.
影响因子：
15
作者：
Hong, Soon Hyeok;Wenzel, Anna G.;Grubbs, Robert H.
通讯作者：
Grubbs, Robert H.