Ruthenium-based metathesis catalysts, precursors for their preparation and their use

    公开(公告)号:US11577232B2

    公开(公告)日:2023-02-14

    申请号:US17562321

    申请日:2021-12-27

    摘要: The invention is directed to ruthenium-based metathesis catalysts of the Grubbs-Hoveyda type. The new 2-aryloxy-substituted ruthenium catalysts described herein reveal rapid initiation behavior. Further, the corresponding styrene-based precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from styrene-based precursors which can be prepared in a cost-effective manner.
    The new Grubbs-Hoveyda type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are necessary to convert a wide range of substrates including more complex and critical substrates via metathesis reactions at low to moderate temperatures in high yields within short reaction times.

    RUTHENIUM-BASED METATHESIS CATALYSTS, PRECURSORS FOR THEIR PREPARATION AND THEIR USE
    3.
    发明申请
    RUTHENIUM-BASED METATHESIS CATALYSTS, PRECURSORS FOR THEIR PREPARATION AND THEIR USE 审中-公开
    基于钌的METATHESIS催化剂,其制备及其使用的前提

    公开(公告)号:US20150266009A1

    公开(公告)日:2015-09-24

    申请号:US14438433

    申请日:2013-10-11

    摘要: The invention is directed to ruthenium-based metathesis catalysts of the Grubbs-Hoveyda type. The new 2-aryloxy-substituted ruthenium catalysts described herein reveal rapid initiation behavior. Further, the corresponding styrene-based precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from styrene-based precursors which can be prepared in a cost-effective manner.The new Grubbs-Hoveyda type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are necessary to convert a wide range of substrates including more complex and critical substrates via metathesis reactions at low to moderate temperatures in high yields within short reaction times.

    摘要翻译: 本发明涉及Grubbs-Hoveyda型的基于钌的复分解催化剂。 本文所述的新的2-芳氧基取代的钌催化剂显示出快速的起始行为。 此外,公开了相应的苯乙烯基前体化合物。 催化剂在交联复分解反应中制备,可以以成本有效的方式制备苯乙烯基前体。 新型Grubbs-Hoveyda型催化剂适用于催化闭环复分解(RCM),交叉复分解(CM)和开环易位聚合(ROMP)。 低反应时间需要较低的催化剂负载量,可以通过复分解反应在低温至中等的温度下以较高的产率将包括更复杂和关键的底物在内的各种底物转化。

    Ruthenium-based metathesis catalysts, precursors for their preparation and their use

    公开(公告)号:US11241680B2

    公开(公告)日:2022-02-08

    申请号:US16014615

    申请日:2018-06-21

    摘要: The invention is directed to ruthenium-based metathesis catalysts of the Grubbs-Hoveyda type. The new 2-aryloxy-substituted ruthenium catalysts described herein reveal rapid initiation behavior. Further, the corresponding styrene-based precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from styrene-based precursors which can be prepared in a cost-effective manner.
    The new Grubbs-Hoveyda type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are necessary to convert a wide range of substrates including more complex and critical substrates via metathesis reactions at low to moderate temperatures in high yields within short reaction times.