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    CHELATING CARBENE LIGAND PRECURSORS AND THEIR USE IN THE SYNTHESIS OF METATHESIS CATALYSTS
    25.
    发明公开
    CHELATING CARBENE LIGAND PRECURSORS AND THEIR USE IN THE SYNTHESIS OF METATHESIS CATALYSTS 有权
    PRE FOR CARBEN螯合物和它们在复分解催化剂的合成

    公开(公告)号：EP1455937A4

    公开(公告)日：2005-10-19

    申请号：EP02792268

    申请日：2002-11-15

    申请人： MATERIA INC

    发明人： PEDERSON RICHARD L ,  WOERTINK JASON K ,  HAAR CHRISTOPHER M ,  GINDELBERGER DAVID E ,  SCHRODI YANN

    IPC分类号： B01J31/22 ,  C07F15/00 ,  C08F2/00 ,  B01J31/00 ,  C07C6/04

    CPC分类号： B01J31/2414 ,  B01J31/1805 ,  B01J31/2204 ,  B01J31/2208 ,  B01J31/2265 ,  B01J31/2273 ,  B01J31/2278 ,  B01J31/2404 ,  B01J2231/50 ,  B01J2231/54 ,  B01J2231/543 ,  B01J2531/821 ,  B01J2531/825 ,  C07F15/002 ,  C07F15/0046

    摘要： Chelating ligand precursors for the preparation of olefin metathesis catalysts are disclosed. The resulting catalysts are air stable monomeric species capable of promoting various metathesis reactions efficiently, which can be recovered from the reaction mixture and reused. Internal olefin compounds, specifically beta-substituted styrenes, are used as ligand precursors. Compared to terminal olefin compounds such as unsubstituted styrenes, the beta-substituted styrenes are easier and less costly to prepare, and more stable since they are less prone to spontaneous polymerization. Methods of preparing chelating-carbene metathesis catalysts without the use of CuCl are disclosed. This eliminates the need for CuCl by replacing it with organic acids, mineral acids, mild oxidants or even water, resulting in high yields of Hoveyda-type metathesis catalysts. The invention provides an efficient method for preparing chelating-carbene metathesis catalysts by reacting a suitable ruthenium complex in high concentrations of the ligand precursors followed by crystallization from an organic solvent.

    摘要翻译： 螯合配体前体的烯烃复分解催化剂的制备是游离缺失盘。 将所得的催化剂是空气稳定能够促销婷各种复分解反应高效的单体种类，可以从反应混合物中回收和再利用。 内烯烃的化合物，具体的β-substituiertem苯乙烯，用作配体前体。 相比末端烯烃化合物：如unsubstituiertem苯乙烯，因为它们不易于自发聚合的βsubstituiertem苯乙烯是更容易且成本更低地制备，并更稳定。 准备螯合卡宾催化剂复分解，而不使用氯化亚铜的方法是游离缺失盘。 这通过与有机酸，无机酸，温和氧化剂或甚至水替换它，在加入Hoveyda型催化剂复分解的高收率得到的消除为氯化亚铜的需要。 本发明提供了对通过在紧随其后的从有机溶剂结晶的配体前体的高浓度的反应的合适的钌配合物制备螯合卡宾复分解催化剂有效的方法。