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25 条记录 (耗时 0.019 秒)

    Erogorgiaene congeners and methods and intermediates useful in the preparation of same
    1.
    发明授权
    Erogorgiaene congeners and methods and intermediates useful in the preparation of same 失效
    嗜曙红同系物及其制备方法和中间体

    公开(公告)号：US07700798B1

    公开(公告)日：2010-04-20

    申请号：US11449143

    申请日：2006-06-08

    申请人： Huw M. L. Davies ,  Abbas M. Walji

    发明人： Huw M. L. Davies ,  Abbas M. Walji

    IPC分类号： C07C69/76

    CPC分类号： C07C67/303 ,  C07C29/147 ,  C07C67/343 ,  C07C67/347 ,  C07C2602/10 ,  C07C2603/97 ,  C07C33/34 ,  C07C69/616 ,  C07C69/618 ,  C07C69/753

    摘要： Disclosed are compounds having the formula: wherein R21 is an alkyl, aryl, alkoxy, hydroxy, or amino group or a halogen atom; wherein R2 is hydrogen or an alkyl, aryl, alkoxy, or amino group; wherein R23 and R24 are independently selected from hydrogen, an alkyl, aryl, alkoxy, hydroxy, or amino group, and a halogen atom or wherein R23 and R24, taken together with the carbon atom to which they are bound, form a ring; wherein R25 is hydrogen, an alkyl, aryl, alkoxy, hydroxy, or O-silyl group or a halogen atom; wherein Z, taken together with the carbons to which it is bonded, forms a 5-12 membered ring; and wherein Y is an electron withdrawing group. These compounds can be used to prepare erogorgiaene congeners, such as erogorgiaene, pseudopterosin A, helioporin E, pseudopteroxazole, colombiasin A, elisapoterosin B, elisabethadione, p-benzoquinone natural products, ileabethin, sinulobtain B, sinulobtain C, and sinulobtain D.

    摘要翻译： 公开了具有下式的化合物：其中R21是烷基，芳基，烷氧基，羟基或氨基或卤素原子; 其中R2是氢或烷基，芳基，烷氧基或氨基; 其中R 23和R 24独立地选自氢，烷基，芳基，烷氧基，羟基或氨基，和卤素原子，或者R 23和R 24与它们所结合的碳原子一起形成环; 其中R 25是氢，烷基，芳基，烷氧基，羟基或O-甲硅烷基或卤素原子; 其中Z与与其键合的碳一起形成5-12元环; 并且其中Y是吸电子基团。 这些化合物可用于制备胡萝卜素同系物，如胡萝卜素，假翅目蛋白A，日莲花素E，假opter azole唑，哥伦布菌素A，依替泊沙星B，伊马替丁，对苯醌天然产物，ileabethin，sinulobtain B，sinulobtain C和sinulobtain D.

    Solid support dirhodium catalyst compositions and methods for making and using same
    4.
    发明授权
    Solid support dirhodium catalyst compositions and methods for making and using same 有权
    固体支撑二铑催化剂组合物及其制备和使用方法

    公开(公告)号：US06962891B2

    公开(公告)日：2005-11-08

    申请号：US10229392

    申请日：2002-08-27

    申请人： Huw M. L. Davies ,  Tadamichi Nagashima

    发明人： Huw M. L. Davies ,  Tadamichi Nagashima

    IPC分类号： B01J23/46 ,  B01J31/16 ,  B01J31/18 ,  B01J31/22 ,  C07F15/00 ,  B01J31/00

    CPC分类号： C07F15/008 ,  B01J23/464 ,  B01J31/1658 ,  B01J31/181 ,  B01J31/2239 ,  B01J31/2243 ,  B01J2231/325 ,  B01J2531/0219 ,  B01J2531/822 ,  C07B2200/11

    摘要： Disclosed are dirhodium catalyst compositions. One such dirhodium catalyst composition includes a dirhodium catalyst and a solid support. The dirhodium catalyst includes a Rh—Rh moiety and four bridging ligand moieties. The dirhodium catalyst and the solid support are bound together, but they are not covalently bound together via one or more of the bridging ligand moieties. Another such dirhodium catalyst composition includes a dirhodium tetracarboxylate catalyst and a solid support, and the dirhodium tetracarboxylate catalyst and the solid support are bound together. Yet another such dirhodium catalyst composition includes a dirhodium catalyst and a solid support, where the dirhodium catalyst includes a Rh—Rh moiety and where the dirhodium catalyst and the solid support are bound together via at least one of the rhodiums' axial positions. The compositions can be used in a number of reactions, including insertion reactions (e.g., C—H insertions, Si—H insertions, O—H insertions, and N—H insertions), cyclopropanation reactions, annulations (e.g., [3+2] annulations and [3+4] annulations), and ω,ω-diarylalkanoate synthesis. Methods for making the dirhodium catalyst compositions are also disclosed.

    摘要翻译： 公开了二铑催化剂组合物。 一种这样的二铑催化剂组合物包括二铑催化剂和固体载体。 铑催化剂包括Rh-Rh部分和四个桥连配体部分。 二铑催化剂和固体载体结合在一起，但它们不通过一个或多个桥连配体部分共价结合在一起。 另一种这样的二铑催化剂组合物包括四羧酸铑催化剂和固体载体，并且四羧酸铑催化剂和固体载体结合在一起。 另一种这样的铑催化剂组合物包括铑催化剂和固体载体，其中二铑催化剂包括Rh-Rh部分，并且其中铑催化剂和固体载体通过铑的至少一个轴向位置结合在一起。 组合物可以用于许多反应，包括插入反应（例如，CH插入，Si-H插入，OH插入和NH插入），环丙烷化反应，环状（例如[3 + 2]环和[3+ 4]环）和ω，ω-二芳基烷酸酯合成。 还公开了制备二铑催化剂组合物的方法。