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203 条记录 (耗时 0.026 秒)

    Thermolytic synthesis of inorganic oxides imprinted with functional moieties
    51.
    发明申请
    Thermolytic synthesis of inorganic oxides imprinted with functional moieties 审中-公开
    印有功能部分的无机氧化物的热分解合成

    公开(公告)号：US20050003188A1

    公开(公告)日：2005-01-06

    申请号：US10806825

    申请日：2004-03-22

    申请人： John Bass ,  Alexander Katz

    发明人： John Bass ,  Alexander Katz

    IPC分类号： B01J21/04 ,  B01J23/02 ,  B01J31/00 ,  B01J31/16 ,  B05D7/00 ,  B32B15/02 ,  C07F15/00 ,  G01N20060101

    CPC分类号： B01J31/1633 ,  B01J31/1815 ,  B01J2231/341 ,  B01J2231/4211 ,  B01J2531/824 ,  B82Y30/00 ,  C07B2200/11 ,  C07F15/0066 ,  Y02P20/55 ,  Y10T428/2982 ,  Y10T428/2991

    摘要： Inorganic oxides, particularly silica or germania or inorganic oxides containing silica and/or germania, are imprinted with one or a plurality of functional moieties such as amine and/or thiol groups by a process featuring incorporating such groups into the oxide by use of a thermally labile material containing a protecting group for the amine or thiol, followed by removal of the thermally labile moiety by thermolysis. The resulting products are inorganic oxide substrates or bulk inorganic oxides imprinted with the functional moieties. A plurality of such moieties may be imprinted on a substrate in an order fashion using a polymeric imprinting compound, and may then be used as a templated array of functional moieties to which ordered metallic nanostructures may be constructed.

    摘要翻译： 无机氧化物，特别是二氧化硅或氧化锗或含有二氧化硅和/或氧化锗的无机氧化物，通过以下方法印上一个或多个功能部分，例如胺和/或硫醇基，其特征是通过使用热 含有胺或硫醇保护基的不稳定材料，然后通过热分解除去热不稳定部分。 所得产物是无机氧化物底物或印有功能部分的本体无机氧化物。 多个这样的部分可以使用聚合物印记化合物以顺序印迹在基底上，然后可以用作可以构建有序金属纳米结构的功能部分的模板阵列。

    Oxotitanium complex, asymmetric hydrogenation catalyst comprising the complex, and process for producing .beta.-hydroxy ketone or .alpha.-hydroxy carboxylic acid ester using the complex
    59.
    发明授权
    Oxotitanium complex, asymmetric hydrogenation catalyst comprising the complex, and process for producing .beta.-hydroxy ketone or .alpha.-hydroxy carboxylic acid ester using the complex 失效
    包含络合物的氧钛复合物，不对称氢化催化剂以及使用络合物生产β-羟基酮或α-羟基羧酸酯的方法

    公开(公告)号：US5714624A

    公开(公告)日：1998-02-03

    申请号：US775205

    申请日：1996-12-30

    申请人： Takeshi Nakai ,  Dai Kitamoto ,  Noboru Sayo

    发明人： Takeshi Nakai ,  Dai Kitamoto ,  Noboru Sayo

    IPC分类号： B01J31/22 ,  C07B61/00 ,  C07C45/51 ,  C07C45/54 ,  C07C45/72 ,  C07C49/17 ,  C07C67/31 ,  C07C67/343 ,  C07C67/347 ,  C07C69/732 ,  C07F7/00 ,  C07F7/28

    CPC分类号： B01J31/223 ,  B01J31/2226 ,  C07C45/511 ,  C07C45/72 ,  C07C67/343 ,  C07C67/347 ,  C07F7/006 ,  B01J2231/341 ,  B01J2531/0266 ,  B01J2531/46 ,  B01J2540/34

    摘要： A novel oxotitanium complex represented by general formula (I) is disclosed: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a phenyl group, a substituted phenyl group, a trialkylsilyl group, a monoalkyldiphenylsilyl group, a dialkylmonophenylsilyl group, a triphenylsilyl group, a substituted triphenylsilyl group, or a lower alkoxycarbonyl group, provided that R.sup.1 and R.sup.2 may be bonded to each other to form a hydrocarbon ring or a substituted hydrocarbon ring in cooperation with the carbon atoms to which R.sup.1 and R.sup.2 are bonded; R.sup.3 and R.sup.4 may be the same or different and each represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a benzoyl group, a benzenesulfonyl group, or a halogen atom, provided that R.sup.3 and R.sup.4 may be bonded to each other to form a hydrocarbon ring or a substituted hydrocarbon ring in cooperation with the carbon atoms to which R.sup.3 and R.sup.4 are bonded; and n is 1 or 2. The novel oxotitanium complex is useful as an asymmetric reaction catalyst. A process for producing a .beta.-hydroxy ketone or an .alpha.-hydroxy carboxylic acid ester in the presence of the novel oxotitanium complex is also disclosed.

    摘要翻译： 公开了由通式（I）表示的新型氧代钛络合物：其中R 1和R 2可以相同或不同，各自表示氢原子，低级烷基，低级烷氧基，卤素原子 苯基，取代苯基，三烷基甲硅烷基，单烷基二苯基甲硅烷基，二烷基单苯基甲硅烷基，三苯基甲硅烷基，取代的三苯基甲硅烷基或低级烷氧基羰基，条件是R 1和R 2可以彼此键合形成 与R1和R2键合的碳原子配合的烃环或取代的烃环; R 3和R 4可以相同或不同，并且各自表示氢原子，低级烷基，低级烷氧基，苯甲酰基，苯磺酰基或卤素原子，条件是R 3和R 4可以彼此键合 与R3和R4键合的碳原子一起形成烃环或取代的烃环; 并且n为1或2.新型氧钛复合物可用作不对称反应催化剂。 还公开了在新型氧代钛络合物存在下生产β-羟基酮或α-羟基羧酸酯的方法。

    Catalysts on inorganic carriers for producing ethylidene diacetate
    60.
    发明授权
    Catalysts on inorganic carriers for producing ethylidene diacetate 失效
    用于生产亚乙基二乙酸酯的无机载体上的催化剂

    公开(公告)号：US5354886A

    公开(公告)日：1994-10-11

    申请号：US97647

    申请日：1993-07-26

    申请人： Dae C. Park ,  Sung Y. Cho

    发明人： Dae C. Park ,  Sung Y. Cho

    IPC分类号： B01J27/13 ,  B01J27/10 ,  B01J31/20 ,  B01J31/24 ,  C07C67/28 ,  C07C67/29 ,  C07C69/16 ,  C07C69/34 ,  B01J31/18

    CPC分类号： B01J27/10 ,  B01J27/13 ,  B01J31/0244 ,  B01J31/1616 ,  B01J31/20 ,  B01J31/2404 ,  C07C67/29 ,  B01J2231/34 ,  B01J2231/341 ,  B01J2231/641 ,  B01J2531/80 ,  B01J2531/822

    摘要： The present invention relates to a catalyst, a process for preparing the catalyst and a process for using the catalyst to produce ethylidene diacetate. The conventional preparation methods of ethylidene diacetate suffer from difficulty in separating the catalyst from the product after completion of the reaction. The catalyst of the present invention is simply separated from the product by mere filtration following the completion of reaction. This is a result of using a heterogenized catalyst which is obtained by supporting a homogeneous catalyst in an inorganic carder. The catalyst of the present invention is of the general formula M.sub.a X where M is a compound of a group VIII transition metal, most preferably RhCl.sub.3 .multidot.xH.sub.2 O, and X is an inorganic carrier, preferably selected from the group consisting of kieselguhr, .gamma.-alumina, silica, TiO.sub.2, MgO, ZnO and activated charcoal. Ethylidene diacetate produced using the present method is useful as an intermediate for producing precision chemical articles or as a starting material for the production of vinyl acetate monomer.

    摘要翻译： 本发明涉及一种催化剂，一种制备该催化剂的方法和一种使用该催化剂生产亚乙基二乙酸酯的方法。 乙酰亚乙基二乙酸酯的常规制备方法难以在反应完成后将催化剂与产物分离。 本发明的催化剂在反应完成后仅通过过滤简单地与产物分离。 这是使用通过在无机梳理器中负载均相催化剂获得的异质催化剂的结果。 本发明的催化剂具有通式MaX，其中M为第VIII族过渡金属化合物，最优选为RhCl 3·xH 2 O，X为无机载体，优选选自由硅藻土，γ-氧化铝，二氧化硅， TiO2，MgO，ZnO和活性炭。 使用本方法制备的二乙酸亚乙酯可用作制备精密化学制品的中间体或用作生产乙酸乙烯酯单体的原料。