利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

354 条记录 (耗时 0.033 秒)

    OLEFIN METATHESIS CATALYSTS AND RELATED METHODS
    4.
    发明申请
    OLEFIN METATHESIS CATALYSTS AND RELATED METHODS 有权
    OLEFIN METATHESIS催化剂及相关方法

    公开(公告)号：US20150065723A1

    公开(公告)日：2015-03-05

    申请号：US14479917

    申请日：2014-09-08

    申请人： Massachusetts Institute of Technology

    发明人： Adam S. Hock ,  Richard R. Schrock

    IPC分类号： B01J31/22 ,  C07C6/04

    CPC分类号： B01J31/2295 ,  B01J31/122 ,  B01J31/1805 ,  B01J31/181 ,  B01J31/2234 ,  B01J31/2265 ,  B01J31/2291 ,  B01J2231/482 ,  B01J2231/54 ,  B01J2231/543 ,  B01J2531/64 ,  B01J2531/66 ,  C07C6/04 ,  C07C2531/22

    摘要： 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.

    摘要翻译： 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。

    OLEFIN METATHESIS CATALYSTS AND RELATED METHODS
    7.
    发明申请
    OLEFIN METATHESIS CATALYSTS AND RELATED METHODS 有权
    OLEFIN METATHESIS催化剂及相关方法

    公开(公告)号：US20110237815A1

    公开(公告)日：2011-09-29

    申请号：US13033472

    申请日：2011-02-23

    申请人： Adam S. Hock ,  Richard R. Schrock

    发明人： Adam S. Hock ,  Richard R. Schrock

    IPC分类号： C07F11/00

    CPC分类号： B01J31/2295 ,  B01J31/122 ,  B01J31/1805 ,  B01J31/181 ,  B01J31/2234 ,  B01J31/2265 ,  B01J31/2291 ,  B01J2231/482 ,  B01J2231/54 ,  B01J2231/543 ,  B01J2531/64 ,  B01J2531/66 ,  C07C6/04 ,  C07C2531/22

    摘要： 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.

    摘要翻译： 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。

    Resin-platinum complex and resin-supported platinum cluster catalyst
    8.
    发明授权
    Resin-platinum complex and resin-supported platinum cluster catalyst 有权
    树脂 - 铂络合物和树脂负载的铂簇催化剂

    公开(公告)号：US07897817B2

    公开(公告)日：2011-03-01

    申请号：US11885734

    申请日：2005-12-01

    申请人： Yasuhiro Uozumi ,  Yoichi Yamada ,  Takayasu Arakawa

    发明人： Yasuhiro Uozumi ,  Yoichi Yamada ,  Takayasu Arakawa

    IPC分类号： C07C49/00

    CPC分类号： C07C45/39 ,  B01J23/42 ,  B01J31/068 ,  B01J31/1658 ,  B01J31/1805 ,  B01J31/2291 ,  B01J31/4038 ,  B01J31/4069 ,  B01J35/0013 ,  B01J35/006 ,  B01J2231/70 ,  B01J2531/828 ,  C07C51/235 ,  Y02P20/584 ,  C07C49/413 ,  C07C49/217 ,  C07C49/78 ,  C07C49/04 ,  C07C49/76 ,  C07C57/44

    摘要： To provide a catalyst that has sufficient catalytic activity as a platinum catalyst and yet is readily separated from a target material and can be reused. A resin-supported platinum cluster catalyst containing a resin layer comprising a platinum particle core, the average diameter of which is from 1 nm to 10 nm, and a compound containing nitrogen (general formula R1NH2) surrounding the core. This catalyst can be obtained by forming a platinum complex from a compound containing nitrogen represented by the general formula R1NR22 (in the formula, R1 represents a carrier with a hydrophilic molecular chain and R2 represents a hydrogen atom, an alkyl group and the like) and a platinum compound represented by the general formula M(PtX4-nR3n)m (in the formula, M represents an alkali metal and the like, X represents a halogen atom and the like, R3 represents an unsaturated organic ligand, n represents an integer from zero to four and m represents an integer indicating the electrical charge of the metal, M) and allowing this platinum complex to react with a reducing agent in an aqueous solvent.

    摘要翻译： 提供具有作为铂催化剂的足够的催化活性并且容易与目标材料分离并且可以重复使用的催化剂。 含有包含平均直径为1nm〜10nm的铂粒子核心的树脂层的树脂负载的铂簇催化剂和包含核的氮（通式R 1 NH 2）的化合物。 该催化剂可以通过由通式R1NR22表示的含氮化合物形成铂络合物（式中，R1表示具有亲水性分子链的载体，R2表示氢原子，烷基等）和 由通式M（PtX4-nR3n）m表示的铂化合物（式中，M表示碱金属等，X表示卤素原子等，R3表示不饱和有机配体，n表示来自 0至4，m表示金属的电荷的整数，M），并允许该铂络合物在水性溶剂中与还原剂反应。