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    • 61. 发明公开
    • 루테늄 또는 오스뮴 복분해 촉매의 합성방법
    • 钌或锇复分解催化剂的合成
    • KR1020000068987A
    • 2000-11-25
    • KR1019997004305
    • 1997-11-10
    • 캘리포니아 인스티튜트 오브 테크놀로지
    • 그루브스로버트에이취.벨데라인토마스알.브라운세트엔.빌헬름토마스이.
    • C07F15/00
    • B01J31/2404B01J31/2265B01J31/2295B01J31/24B01J2231/14B01J2231/54B01J2231/543B01J2531/821B01J2531/825C07F15/002C07F15/0046
    • 본발명은출발물질로쉽게이용될수 있는우수한수득율의고급활성루테늄및 오스뮴카르벤복분해촉매의합성방법에관한것으로서, 합성될수 있는촉매는하기의화학식 1의화합물이다. (화학식 1) (상기화학식에서, M은루테늄또는오스뮴이고; X 및 X은각각특정음이온리간드이고; L 및 L은특정의중성전자주개이고; 상기 R 및 R은각각수소또는하기의치환기중 하나이고: C-C알케닐, C-C알키닐, C-C알킬, 아릴, C-C카르복실레이트, C-C알콕시, C-C알켄일옥시, C-C알키닐옥시, 아릴옥시, C-C알콕시카보닐, C-C알킬티오, C-C알킬설포닐및 C-C알킬설피닐이며, 선택적으로상기치환기는 C-C알킬, 할로겐, C-C알콕시및 아릴에서선택된하나이상의그룹으로치환될수 있으며, 상기치환아릴기가페닐기일때, 할로겐, C-C알킬또는 C-C알콕시에서선택된하나이상의기로부가적으로치환될수 있으며, R이수소이고, R은 -CHCRR인비닐알킬리덴촉매및 비닐기를갖지않는알킬리덴촉매에대한특정합성방법이또한개시되어있고, 상기반응은합성이용이할뿐만아니라(전형적인 1단계합성), 대개실내온도에서또는그 이상에서실시될수 있으며, 수득된생성물은광범위한합성후정제없이사용될수 있는것을특징으로한다.
    • 本发明是下式1的化合物,所述催化剂合成可涉及一种方法,用于高活性钌和以良好的收率锇卡宾复分解催化剂的合成中,可以很容易地用作起始材料。 (I)(式中,M是钌或锇gt;将一个R和R各自为氢的取代基,或; X和X是一个特定的阴离子配位体各自; L和L是特定于经常编号房子的 是:CC烯基,CC-炔基,CC烷基,芳基,CC-羧酸酯,CC烷氧基,链烯基CC氧基,CC炔氧基,芳氧基,烷氧基羰基CC,CC烷硫基,烷基磺酰基CC和 CC烷基亚磺酰基,任选地加入组,其中所述取代基是至少一种从CC烷基,卤素,可与来自CC烷氧基中选择的一个或多个基团取代,和芳基,当取代基的芳基是苯基,卤素,CC烷基,CC烷氧基 R为氢,R为-CHCRR,还公开了不含乙烯基的亚烷基催化剂,该反应不仅是合成的, 步骤合成) 通常在室温或高于室温下,所得产物可以在没有广泛的合成后纯化的情况下使用。
    • 70. 发明申请
    • OLEFIN METATHESIS CATALYSTS AND RELATED METHODS
    • OLEFIN METATHESIS催化剂及相关方法
    • US20150065723A1
    • 2015-03-05
    • US14479917
    • 2014-09-08
    • Massachusetts Institute of Technology
    • Adam S. HockRichard R. Schrock
    • B01J31/22C07C6/04
    • B01J31/2295B01J31/122B01J31/1805B01J31/181B01J31/2234B01J31/2265B01J31/2291B01J2231/482B01J2231/54B01J2231/543B01J2531/64B01J2531/66C07C6/04C07C2531/22
    • The present invention provides methods for the synthesis of catalysts and precursors thereof. Methods of the invention may comprise combining a catalyst precursor and at least one ligand to generate a catalytically active species, often under mild conditions and in high yields. In some cases, a wide variety of catalysts may be synthesized from a single catalyst precursor. Methods of the invention may also include the preparation of catalysts which, under reaction conditions known in the art, may have been difficult or impossible to prepare and/or isolate due to, for example, steric crowding at the metal center. The present invention also provides catalyst compositions, and precursors thereof, which may be useful in various chemical reactions including olefin metathesis. In some cases, methods of the invention may reduce the number of synthetic and purification steps required to produce catalysts and/or other reaction products, as well as reducing time, cost, and waste production.
    • 本发明提供合成催化剂及其前体的方法。 本发明的方法可以包括将催化剂前体和至少一种配体结合以产生催化活性物质,通常在温和条件下和高产率下。 在一些情况下,可以从单一催化剂前体合成多种催化剂。 本发明的方法还可以包括催化剂的制备,其在本领域已知的反应条件下可能由于例如在金属中心的空间拥挤而难以或不可能制备和/或分离。 本发明还提供催化剂组合物及其前体,其可用于包括烯烃复分解的各种化学反应。 在一些情况下,本发明的方法可以减少制备催化剂和/或其它反应产物所需的合成和纯化步骤的数量,以及减少时间,成本和废物的产生。