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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Cycloalkyl-based unsymmetrical unsaturated (U_2)-NHC ligands: flexibility and dissymmetry in ruthenium-catalysed olefin metathesis
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Cycloalkyl-based unsymmetrical unsaturated (U_2)-NHC ligands: flexibility and dissymmetry in ruthenium-catalysed olefin metathesis

机译:基于环烷基的不对称不饱和(U_2)-NHC配体:钌催化的烯烃复分解中的柔性和不对称性

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摘要

Air-stable Ru-indenylidene and Hoveyda-type complexes bearing new unsymmetrical unsaturated N-heterocyclic carbene (U_2-NHC) ligands combining a mesityl unit and a flexible cycloalkyl moiety as N-substituents were synthesised. Structural features, chemical stabilities and catalytic profiles in olefin metathesis of this new library of cycloalkyl-based U_2-NHC Ru complexes were studied and compared with their unsymmetrical saturated NHC-Ru homologues as well as a set of commercially available Ru-catalysts bearing either symmetrical SIMes or IMes NHC ligands.
机译:合成了具有新的不对称不饱和N-杂环卡宾(U_2-NHC)配体的空气稳定的Ru-茚基和Hoveyda型配合物,该配体结合了1,2,3,4,5-三环烯单元和灵活的环烷基部分作为N-取代基。研究了这个新的基于环烷基的U_2-NHC Ru配合物库中烯烃复分解的结构特征,化学稳定性和催化分布,并与它们的不对称饱和NHC-Ru同系物以及一套市售的带有对称性的Ru催化剂进行了比较。 SIMes或IMes NHC配体。

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