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首页> 外文期刊>Chemistry: A European journal >Ruthenium Catalysts Supported by Amino-Substituted NHeterocyclic Carbene Ligands for Olefin Metathesis of Challenging Substrates
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Ruthenium Catalysts Supported by Amino-Substituted NHeterocyclic Carbene Ligands for Olefin Metathesis of Challenging Substrates

机译：由氨基取代的Nhetercyclic Carbene配体负载的钌催化剂用于统一性底物的烯烃复分解

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摘要

N-Heterocyclic carbene (NHC) ligands IMes~(NMe_2) and IMes~((NMe_2)_2) derived from the well-known IMes ligand by substituting the carbenic heterocycle with one and two dimethylamino groups, respectively, were employed for the synthesis of second-generation Grubbs- and Grubbs-Hoveydatype ruthenium metathesis precatalysts. Whereas the stability of the complexes was found to depend on the degree of dimethylamino-substitution and on the type of complex, the backbone-substitution was shown to have a positive impact on their catalytic activity in ring-closing metathesis, with a more pronounced effect in the second-generation Grubbstype series. The new complexes were successfully implemented in a number of challenging olefin metathesis reactions leading to the formation of tetra-substituted C=C double bonds and/or functionalized compounds.
机译：通过将碳杂环用一种和两个二甲基氨基代替众所周知的IMES配体衍生自众所周知的IMES配体的N-杂环（NME_2）和IMES〜（（NME_2）_2）用于合成 第二代Grubbs-和Grubbs-hoveydatype钌复分解催化剂。 虽然发现复合物的稳定性取决于二甲基氨基取代的程度和在复合物的类型上，所示的骨干替代物在闭环复分解中对其催化活性产生正影响，具有更明显的效果 在第二代Grubbstype系列中。 在一些挑战性烯烃复分解反应中成功实施了新的复合物，其导致Tetra取代的C = C双键和/或官能化化合物的形成。

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  • 来源
    《Chemistry: A European journal》 |2017年第8期|共6页
  • 作者

    Vincent César; Yin Zhang; Wioletta Ko?nik; Adam Zieliń ski; Adam A. Rajkiewicz; Mirko Ruamps; Stéphanie Bastin; No?l Lugan; Guy Lavigne?; Karol Grela;

  • 作者单位

    LCC-CNRS Université de Toulouse INPT UPS Toulouse (France);

    LCC-CNRS Université de Toulouse INPT UPS Toulouse (France);

    Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Zwirki i Wigury 101 02-089 Warsaw (Poland);

    Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Zwirki i Wigury 101 02-089 Warsaw (Poland);

    Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Zwirki i Wigury 101 02-089 Warsaw (Poland);

    LCC-CNRS Université de Toulouse INPT UPS Toulouse (France);

    LCC-CNRS Université de Toulouse INPT UPS Toulouse (France);

    LCC-CNRS Université de Toulouse INPT UPS Toulouse (France);

    LCC-CNRS Université de Toulouse INPT UPS Toulouse (France);

    Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Zwirki i Wigury 101 02-089 Warsaw (Poland);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    carbenes; C-C bond formation; heterocycles; homogeneous catalysis; metathesis;

    机译：C-C键组;杂环;均匀催化;复分解;

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