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517 条记录 (耗时 0.03 秒)

    Method for the preparation of cannabidiol
    1.
    发明授权
    Method for the preparation of cannabidiol 有权

    公开(公告)号：US11555004B2

    公开(公告)日：2023-01-17

    申请号：US17432696

    申请日：2020-02-03

    申请人： CHIRACON GMBH

    发明人： Ralf Zuhse ,  Dmytro Ostrovskyi

    IPC分类号： C07C37/11 ,  C07C37/055 ,  C07C37/14

    摘要： The invention relates to a method for the preparation of cannabidiol and an intermediate for the preparation of cannabidiol, wherein two intermediates are obtained, namely a silylated olivetol and a silylated olivetol (2) and brominated olivetol (4) which are stable, storable and which do not have undesirable properties or byproducts.

    LIQUID CRYSTAL COMPOUND CONTAINING A DIFLUORMETHOXY BRIDGE AND APPLICATION THEREOF
    4.
    发明申请
    LIQUID CRYSTAL COMPOUND CONTAINING A DIFLUORMETHOXY BRIDGE AND APPLICATION THEREOF 审中-公开

    公开(公告)号：US20180148398A1

    公开(公告)日：2018-05-31

    申请号：US15521215

    申请日：2015-06-01

    申请人： BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD ,  DONGJIN SEMICHEM CO., LTD

    发明人： Zhanying JIANG

    IPC分类号： C07C43/225 ,  C09K19/30 ,  C07C41/09 ,  C07C37/055

    摘要： The present invention relates to a liquid crystal compound having a structure as shown by formula I, wherein R is selected from H and alkyl or alkoxy containing 1-12 carbon atoms in which one or more H are unsubstituted or substituted with halogens; A1, A2 and A3 are each independently selected from: a single bond, 1,4-cyclohexylene, 1,4-phenylene, wherein hydrogen in 1,4-phenylene may be each independently substituted with one or more halogens; and Z1 and Z2 are each independently selected from a single bond or —(CH2)2—. The compound of the invention has the characteristics of low rotational viscosity, large dielectric anisotropy, good mutual solubility and stability. The driving voltage of a device can be remarkably reduced after the compound is added to a composition. Thus, the compound of the invention has prosperous applications in LCD industry.

    Catalyst support and process for the preparation thereof
    6.
    发明授权
    Catalyst support and process for the preparation thereof 有权
    催化剂载体及其制备方法

    公开(公告)号：US09375707B2

    公开(公告)日：2016-06-28

    申请号：US14050823

    申请日：2013-10-10

    申请人： Jean-Pierre Ganhy ,  Armin T. Liebens

    发明人： Jean-Pierre Ganhy ,  Armin T. Liebens

    IPC分类号： B01J29/068 ,  B01J21/12 ,  B01J23/38 ,  B01J23/44 ,  B01J23/89 ,  B01J37/02 ,  C01B15/023 ,  C07C37/055

    CPC分类号： B01J29/068 ,  B01J21/12 ,  B01J23/38 ,  B01J23/44 ,  B01J23/8906 ,  B01J37/0201 ,  C01B15/023 ,  C07C37/055

    摘要： An amorphous catalyst support comprising at least a first oxide selected from the group consisting of: silica, germanium oxide, titanium oxide, zirconium oxide or mixtures thereof, preferably silica gel beads or diatomaceous earth; a group 3 metal oxide; and anions in an amount not greater than 10% by weight of the catalyst support; wherein the group 3 metal oxide is incorporated in the first oxide structure at the molecular level. The catalyst support is prepared by (a) mixing the first oxide, with an anhydrous source of the group 3 metal oxide, and water, at a pH above 11, thus forming a suspension, (b) washing the catalyst support with water, (c) separating the catalyst support from the water, and (d) optionally drying and/or calcining the catalyst support. A catalyst based on such a support has improved catalytic properties.

    摘要翻译： 包含至少选自二氧化硅，氧化锗，氧化钛，氧化锆或其混合物，优选硅胶珠或硅藻土的第一氧化物的无定形催化剂载体; 3族金属氧化物; 和不大于催化剂载体的10重量％的阴离子; 其中所述第3族金属氧化物以分子水平掺入所述第一氧化物结构中。 催化剂载体通过以下步骤制备：（a）将第一氧化物与第3族金属氧化物的无水源和水混合，pH高于11，从而形成悬浮液，（b）用水洗涤催化剂载体， c）将催化剂载体与水分离，和（d）任选地干燥和/或煅烧催化剂载体。 基于这种载体的催化剂具有改善的催化性能。

    Process for the preparation of hydroxytyrosol
    10.
    发明授权
    Process for the preparation of hydroxytyrosol 有权
    羟基酪醇的制备方法

    公开(公告)号：US08822738B1

    公开(公告)日：2014-09-02

    申请号：US14188837

    申请日：2014-02-25

    申请人： Wacker Chemie AG

    发明人： Benno Krueger ,  Gerald Fleischmann ,  Hermann Petersen

    IPC分类号： C07C37/055 ,  C07C37/50 ,  C07C37/01

    CPC分类号： C07C37/055 ,  C07C39/11

    摘要： A process for preparing hydroxytyrosol, wherein a compound where X is CH2OH or CH2OM (M=Li, Na, K, Mg, Ca), R1 and R2 are identical or different and are C1-C8 alkyl radical, benzyl radical, alkyl- or halogen-substituted benzyl radical or arylalkyl radical, where R1 and R2 can also be linked via to give a ring, R3, R4, R5 and R6 are identical or different and are hydrogen or C1-C6 alkyl radical, aryl radical, alkyl-substituted aryl radical, where R5 and R6 can also be linked via —(CH2)4—, —(CH2)5— or —(CH2)6— to give a ring, is reacted with an aluminum compound AlR7R8R9 (2), where R7, R8 and R9 are identical or different and are H or C1-C8 alkyl radical, and then an aqueous solution of a hydroxycarboxylic acid is added to form a clear homogeneous acidic solution with a pH

    摘要翻译： 制备羟基酪醇的方法，其中X为CH 2 OH或CH 2 O（M = Li，Na，K，Mg，Ca），R 1和R 2的化合物相同或不同，为C 1 -C 8烷基，苄基，烷基或 卤素取代的苄基或芳基烷基，其中R 1和R 2也可以连接通过以形成环，R 3，R 4，R 5和R 6相同或不同，为氢或C 1 -C 6烷基，芳基，烷基取代 芳基，其中R 5和R 6也可以通过 - （CH 2）4 - ， - （CH 2）5 - 或 - （CH 2）6连接得到环与铝化合物AlR 7 R 8 R 9（2）反应，其中R 7 R8和R9相同或不同，为H或C1-C8烷基，然后加入羟基羧酸水溶液以形成pH <3的透明均匀酸性溶液，并从其中提取羟基酪醇。