PROCESS FOR PRODUCTION OF MESO-FORM AND RACEMIC-FORM METALLOCENE COMPLEXES
    5.
    发明公开
    PROCESS FOR PRODUCTION OF MESO-FORM AND RACEMIC-FORM METALLOCENE COMPLEXES 有权
    VERFAHREN ZUR HERSTELLUNG VON METALLOCENKOMPLEXEN在RACEMISCHER FORM

    公开(公告)号:EP2650300A1

    公开(公告)日:2013-10-16

    申请号:EP11847233.1

    申请日:2011-11-24

    IPC分类号: C07F17/00 C07F7/00 C07F7/08

    摘要: A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at -25°C or less; and introducing an anionizing agent within 5 hours after the contact, wherein R 1 to R 10 are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A' are independently a cross-linking group containing an atom belonging to the 14 th group of the periodic table; M and M' are independently an atom belonging to the 1 st or the 2 nd group of the periodic table.

    摘要翻译: 一种制备由式(3)表示的阴离子化内消旋双交联配体的方法,包括:使式(1)表示的化合物在-25℃下与式(2)表示的化合物接触或 减; 并在接触后5小时内引入阴离子化剂,其中R 1至R 10独立地为氢原子,具有1至20个碳原子的烃基等; A和A'独立地是含有属于周期表第14族的原子的交联基团; M和M'独立地是属于周期表的第1或第2组的原子。

    SYNTHETIC PROCESS FOR CYCLIC ORGANOSILANES
    8.
    发明公开
    SYNTHETIC PROCESS FOR CYCLIC ORGANOSILANES 审中-公开
    合成工艺FOR循环的有机硅烷

    公开(公告)号:EP2086986A2

    公开(公告)日:2009-08-12

    申请号:EP07842396.9

    申请日:2007-09-13

    发明人: SHEN, Qionghua

    IPC分类号: C07F7/02

    CPC分类号: C07F7/0807

    摘要: A process for preparing a cyclic organosilane using a solvent that promotes ring-closure reactions between an organosilane compound and a dihalo organic compound is disclosed. The ring-closure reactions may form a 4-, 5- or 6-member cyclic organosilane. The process involves a mixture including a dihalo organic compound, an organosilane having at least two functional groups, a solvent and magnesium (Mg). The two functional groups in the organosilane may include halogen, alkoxy or a combination thereof. In the presence of Mg, a Grignard intermediate is formed from the dihalo organic compound in the mixture. The solvent favors intra-molecular or self-coupling reactions of the Grignard intermediate. The intra-molecular or self-coupling reaction promotes ring-closure reaction of the Grignard intermediate to form the cyclic organosilane.