MULTINUCLEAR METALLOCENE CATALYST COMPLEXES FOR OLEFIN POLYMERISATION AND COPOLYMERISATION AND METHOD OF PREPARING THEREOF

    公开(公告)号:US20140024790A1

    公开(公告)日:2014-01-23

    申请号:US14002910

    申请日:2012-02-14

    Abstract: The invention relates to a multinuclear metallocene catalyst of general formula (1); wherein Y and Y′ are the same or different and independently selected from a C1-20 linear hydrocarbyl group; C1-20 branched hydrocarbyl group; C1-20 cyclic hydrocarbyl group; a C1-30 aryl group and a C1-30 substituted aryl group; L and L′ are the same or different and each is an electron-donating group independently selected from the elements of Group 15 of the Periodic Table; Q and Q′ are the same or different and independently selected from hydrogen, a C1-30 alkyl group and a C1-30 aryl group; M″ is a metal selected from Group 3, 4, 5, 6, 7, 8, 9 and 10 elements and from lanthanide series elements of the Periodic Table; Z is selected from the group consisting of hydrogen; a halogen element; a C1-20 hydrocarbyl group; C1-20 alkoxy group and a C1-20 aryloxy group; B and B′ are the same or different and each is a half sandwich metallocene compound, with B being represented by Formula 2 and B′ being represented by Formula 3: W-M-Xx (Formula 2), W′-M′-X′x′, (Formula 3) wherein: W and W′ are the same or different and independently a ligand compound having a cyclo pentadienyl skeleton selected from the group consisting of cyclopentadienyl, substituted cyclopentadienyl, indenyl, substituted indenyl, fluorenyl and substituted fluorenyl; M and M′ are the same and each is independently selected from the group consisting of scandium; yttrium; lanthanoid series elements; titanium; zirconium; hafnium; vanadium; niobium; and tantalum; X and X′ are the same or different and each is selected from the group consisting of hydrogen; a halogen element; a C 1-20 hydrocarbyl group, C1-20 alkoxy group; and C1-20 aryloxy group; x and x′ are independently integers from 0 to 3; z is an integer from 1 to 5; n, n′ are independently 0 or 1, with 1≦(n+n′)≦2. The invention further relates to a method to prepare said multinuclear metallocene catalyst compound. The invention further relates to a catalyst system and to a process for the polymerisation of olefins.

    Highly active metathesis catalysts selective for ROMP and RCM reactions
    43.
    发明授权
    Highly active metathesis catalysts selective for ROMP and RCM reactions 有权
    高活性复分解催化剂选择性ROMP和RCM反应

    公开(公告)号:US08592618B2

    公开(公告)日:2013-11-26

    申请号:US12684410

    申请日:2010-01-08

    Abstract: The present invention relates to a kind of novel carbene ligands and ruthenium catalysts, which is highly active and selective for ROMP and RCM reactions, respectively. It discloses the significant electronic and steric effect of different substituted carbene ligands on the catalytic activity and stability of corresponding carbene ruthenium complexes; some of novel ruthenium complexes in the invention can be broadly used as catalysts highly effectively and selective for ROMP and RCM reactions. The invention also relates to preparation of new ruthenium catalysts and the uses in metathesis. Moreover, the invention also provides effective methods of making various functional polymers by ROMP reaction in the presence of new ruthenium catalysts.

    Abstract translation: 本发明涉及一种新型卡宾配体和钌催化剂,其分别对ROMP和RCM反应具有高度活性和选择性。 它公开了不同取代的卡宾配体对相应的卡宾钌络合物的催化活性和稳定性的显着电子和空间效应; 本发明中的一些新型钌络合物可广泛用作催化剂,对ROMP和RCM反应具有高度有效的选择性。 本发明还涉及新的钌催化剂的制备和复分解的用途。 此外,本发明还提供了在新的钌催化剂存在下通过ROMP反应制备各种官能聚合物的有效方法。

    Catalyst for desulfurization and deodorization of gasoline and method for preparation of the same and use thereof
    48.
    发明授权
    Catalyst for desulfurization and deodorization of gasoline and method for preparation of the same and use thereof 有权
    用于汽油脱硫除臭的催化剂及其制备方法及其应用

    公开(公告)号:US08501657B2

    公开(公告)日:2013-08-06

    申请号:US12933313

    申请日:2008-11-20

    Abstract: A catalyst for the desulfurization and deodorization of gasoline, which is expressed by the formula: QlBmHn[AxMyOz](1+m+n)−, where: Q denotes a quaternary ammonium cation consisting of R1R2R3R4N+, in which R1, R2, R3, and R4 each denotes independently a C1 to C20 saturated alkyl group, respectively, provided that at least one of R1, R2, R3, and R4 denotes a C4 to C20 saturated alkyl group; B denotes a metal cation of Na+ or/and K+; H denotes a hydrogen atom; A denotes a central atom of B, P, As, Si or Al; M denotes a coordinated atom of W or Mo; O denotes an oxygen atom; 1≦l≦10, 0≦m≦3, 0≦n≦3, l+m+n≦14, x=1 or 2, 9≦y≦18, 34≦z≦62, and l, m, n, y and z all are integers. A method of the desulfurization and deodorization of gasoline by using the catalyst comprises the steps of: mixing the catalyst and an aqueous solution of hydrogen peroxide, and then adding the gasoline to react them with stirring under conditions of 25 to 90° C. and 0.1 to 1 MPa for 10 to 180 min. An odorless gasoline can be obtained through settlement or centrifugation, and the catalyst is recovered.

    Abstract translation: 一种用于汽油脱硫除臭的催化剂,其由下式表示:QlBmHn [AxMyOz](1 + m + n) - ,其中:Q表示由R1R2R3R4N +组成的季铵阳离子,其中R1,R2,R3, 并且R 4各自独立地表示C1〜C20饱和烷基,条件是R 1,R 2,R 3和R 4中的至少一个表示C 4至C 20饱和烷基; B表示Na +或/和K +的金属阳离子; H表示氢原子; A表示B,P,As,Si或Al的中心原子; M表示W或Mo的配位原子; O表示氧原子; 1 @ l @ 10,0 @ m @ 3,0 @ n @ 3,l + m + n @ 14,x = 1或2,9 @ y @ 18,34 @ z @ 62和l,m,n ,y和z都是整数。 通过使用催化剂对汽油进行脱硫除臭的方法包括以下步骤:将催化剂和过氧化氢水溶液混合,然后加入汽油使其在25〜90℃,0.1〜 至1MPa 10至180分钟。 可以通过沉降或离心获得无臭汽油,回收催化剂。

    Optically active cyclic alcohol compound
    50.
    发明授权
    Optically active cyclic alcohol compound 有权
    光学活性环状醇化合物

    公开(公告)号:US08471028B2

    公开(公告)日:2013-06-25

    申请号:US13087588

    申请日:2011-04-15

    Abstract: The present invention relates to a method for preparing an optically active cyclic alcohol compound represented by general formula [I]: [wherein R represents a hydrogen atom or a protecting group for amino group, and * represents an asymmetric carbon atom.] which comprises a step of subjecting a cyclic ketone compound represented by general formula [II]: [wherein R has the same meaning as defined above.] to asymmetric reduction (A) in the presence of an optically active oxazaborolidine compound and a boron hydride compound, or (B) in the presence of an asymmetric transition metal complex obtained from a transition metal compound and an asymmetric ligand and a hydrogen donor, and relates to said compound.

    Abstract translation: 本发明涉及一种由通式[I]表示的光学活性环状醇化合物的制备方法:[其中R表示氢原子或氨基保护基,*表示不对称碳原子],其包含 在光学活性的恶唑硼烷化合物和硼氢化合物的存在下,将不饱和还原(A)进行不饱和还原(A)的步骤:(其中R具有与上述定义相同的含义) B)在由过渡金属化合物和不对称配体和氢供体获得的不对称过渡金属络合物的存在下,涉及所述化合物。

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