Protonolysis of a ruthenium-carbene bond and applications in olefin metathesis.
Protonolysis of a ruthenium-carbene bond and applications in olefin metathesis.
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DOI:
10.1021/ja203070r
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发表时间:
2011-06-08
影响因子:
15
通讯作者:
Grubbs, Robert H.
中科院分区:
文献类型:
--
作者:
Keitz, Benjamin K.;Bouffard, Jean;Bertrand, Guy;Grubbs, Robert H.
The synthesis of a ruthenium complex containing an N-heterocylic carbene (NHC) and a mesoionic carbene (MIC) is described wherein addition of a Brønsted acid results in protonolysis of the Ru-MIC bond to generate an extremely active metathesis catalyst. Mechanistic studies implicate a rate-determining protonation step to generate the metathesis active species. The NHC/MIC catalyst was found to have activity exceeding current commercial ruthenium catalysts.
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