SYNTHESIS OF CYCLOPENTADIENE DERIVATIVES
    3.
    发明申请
    SYNTHESIS OF CYCLOPENTADIENE DERIVATIVES 审中-公开
    环戊二烯衍生物的合成

    公开(公告)号:US20100222601A1

    公开(公告)日:2010-09-02

    申请号:US12448152

    申请日:2007-11-21

    IPC分类号: C07D333/78

    CPC分类号: C07D333/78

    摘要: A process for preparing cyclopentadiene derivatives having formula (I) Wherein R1, R2, R3, R4, R5 and R6 equal to or different from each other, are hydrogen atoms or hydrocarbon groups comprising the steps of reacting a substituted or unsubstituted indanon with a base and then with a substituted or unsubstituted haloaceton and treating the obtained product with the Lawesson's reagent.

    摘要翻译: 一种制备具有式(I)的环戊二烯衍生物的方法,其中R1,R2,R3,R4,R5和R6彼此相同或不同的是氢原子或烃基,包括使取代或未取代的茚满酮与碱 然后用取代或未取代的卤代丙酮,并用Lawesson试剂处理得到的产物。

    Process for the Racemoselective Preparation of Ansa-Metallocenes

    公开(公告)号:US20080275261A1

    公开(公告)日:2008-11-06

    申请号:US11579526

    申请日:2005-05-04

    IPC分类号: C07F7/08

    CPC分类号: C07F17/00

    摘要: The present invention relates to a process for the racemoselective preparation of ansa-metallocene complexes of the formula (I) which comprises reacting a ligand starting compound of the formula (II) with a transition metal compound of the formula (III) (LB)yM1(NR3R4)x-1   (III) where R1, R1′ are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R2, R2′ are identical or different and are each hydrogen or an organic radical having from 1 to 40 carbon atoms, R3 is an organic radical having from 1 to 40 carbon atoms, R4 is hydrogen or an organic radical having from 1 to 40 carbon atoms, T, T′ are identical or different and are each a divalent organic group which has from 1 to 40 carbon atoms and together with the cyclopentadienyl ring forms at least one further saturated or unsaturated, substituted or unsubstituted ring system which has a ring size of from 5 to 12 atoms, where T and T′ may contain the heteroatoms Si, Ge, N, P, As, Sb, O, S, Se or Te within the ring system fused to the cyclopentadienyl ring, A is a bridge consisting of a divalent atom or a divalent group, M1 is an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides, the radicals X are identical or different and are each an organic or inorganic radical which can be substituted by a cyclopentadienyl anion, x is a natural number from 3 to 6, M2 is an alkali metal, an alkaline earth metal or a magnesium monohalide fragment, p is 1 in the case of doubly positively charged metal ions or is 2 in the case of singly positively charged metal ions or metal ion fragments, LB is an uncharged Lewis-base ligand and y is a natural number from 0 to 6, and also a further process for the racemoselective preparation of ansa-metallocene complexes of the formula (IV) starting from the metallocene complexes of the formula (I) prepared by the first process, the use of transition metal compounds of the formula (III) for preparing metallocenes and also specific transition metal compounds of the formula (III).

    Process for preparing transition metal compounds for olefins polymerization
    5.
    发明授权
    Process for preparing transition metal compounds for olefins polymerization 有权
    制备用于烯烃聚合的过渡金属化合物的方法

    公开(公告)号:US08207281B2

    公开(公告)日:2012-06-26

    申请号:US12734266

    申请日:2008-12-11

    申请人: Reynald Chevalier

    发明人: Reynald Chevalier

    IPC分类号: C08F4/6592 C08F4/642

    摘要: The present invention relates to a process for preparing transition metal compounds, in particular ansa-bisindenyl-metallocenes having nitrogen, phosphor, sulfur or oxygen comprising substituents, the corresponding transition metal compounds themselves and their use in the preparation of catalyst systems and also the use of the catalyst systems in the polymerization and copolymerization of olefins.

    摘要翻译: 本发明涉及一种制备过渡金属化合物的方法,特别是具有氮,磷,硫或氧的包括取代基的硫杂双茚基 - 金属茂,相应的过渡金属化合物本身及其在制备催化剂体系中的用途,以及其用途 的烯烃聚合和共聚合催化剂体系。

    CATALYSTS FOR OLEFIN POLYMERIZATION
    7.
    发明申请
    CATALYSTS FOR OLEFIN POLYMERIZATION 失效
    烯烃聚合催化剂

    公开(公告)号:US20110306740A1

    公开(公告)日:2011-12-15

    申请号:US12802570

    申请日:2010-06-09

    摘要: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a bridged cyclopentadienyl complex that incorporates a monoanionic hydroxylamido or hydrazido ligand fragment. Suitable complexes have the structure: wherein M is a Group 4 metal; Z is a divalent linking group; X is N or O; each of R1 and R2 is independently C1-C4 alkyl or C6-C10 aryl; R1 and R2 can be joined together; n is 0 when X is O, and n is 1 when X is N; each Y is independently halide, alkyl, dialkylamido, aryl, or aralkyl. A modeling approach is used to identify particular valuable complexes, each of which incorporates a readily synthesized cyclopentadienyl precursor.

    摘要翻译: 公开了可用于聚合烯烃的催化剂。 催化剂包含活化剂和掺入单阴离子羟基酰氨基或肼基配位体片段的桥连环戊二烯基络合物。 合适的络合物具有以下结构:其中M是第4族金属; Z是二价连接基团; X为N或O; R 1和R 2各自独立地为C 1 -C 4烷基或C 6 -C 10芳基; R1和R2可以连接在一起; 当X为O时,n为0,X为N时n为1; 每个Y独立地是卤素,烷基,二烷基酰氨基,芳基或芳烷基。 使用建模方法来鉴定特定有价值的络合物,其中每一种都包含易于合成的环戊二烯基前体。

    Olefin polymerization catalysts
    8.
    发明申请
    Olefin polymerization catalysts 审中-公开
    烯烃聚合催化剂

    公开(公告)号:US20110251362A1

    公开(公告)日:2011-10-13

    申请号:US12798739

    申请日:2010-04-09

    摘要: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 transition metal complex which comprises at least one monoanionic R1N—XR2 ligand, where X is O or S, and each of R1 and R2 is independently alkyl, aryl, arylalkyl, alkylaryl, or trialkylsilyl. The complexes are readily made from R1NH—XR2 precursors and are often useful as catalyst components without further purification. The catalysts have good activities, incorporate comonomers well, and provide polymers with high molecular weight.

    摘要翻译: 公开了可用于聚合烯烃的催化剂。 催化剂包含活化剂和第4族过渡金属络合物,其包含至少一种单离子R 1 N-X R 2配位体,其中X为O或S,R 1和R 2各自独立地为烷基,芳基,芳基烷基,烷基芳基或三烷基甲硅烷基。 络合物容易由R1NH-XR2前体制成,并且通常可用作催化剂组分而无需进一步纯化。 催化剂具有良好的活性,很好地加入共聚单体,并提供高分子量的聚合物。