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    Process for the Racemoselective Preparation of Ansa-Metallocenes
    21.
    发明申请
    Process for the Racemoselective Preparation of Ansa-Metallocenes 有权

    公开(公告)号：US20080275261A1

    公开(公告)日：2008-11-06

    申请号：US11579526

    申请日：2005-05-04

    Applicant: Valerie Garcia ,  Patrik Muller ,  Christian Sidot ,  Christian Tellier ,  Ludovic Delancray ,  Reynald Chevalier

    Inventor： Valerie Garcia ,  Patrik Muller ,  Christian Sidot ,  Christian Tellier ,  Ludovic Delancray ,  Reynald Chevalier

    IPC: C07F7/08

    CPC classification number: C07F17/00

    Abstract: 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).

    RACEMOSELECTIVE SYNTHESIS OF RAC-DIORGANOSILYLBIS(2-METHYLBENZO[E]INDEYL)ZIRCONIUM COMPONDS
    23.
    发明申请
    RACEMOSELECTIVE SYNTHESIS OF RAC-DIORGANOSILYLBIS(2-METHYLBENZO[E]INDEYL)ZIRCONIUM COMPONDS 失效
    异氰脲酸二甲酯（2-甲基苯并[E]吲哚）的组合选择性合成ZIRCONIUM组分

    公开(公告)号：US20060167295A1

    公开(公告)日：2006-07-27

    申请号：US10532511

    申请日：2003-10-22

    Applicant: Hans-Robert Damrau ,  Patrik Muller ,  Valerie Garcia ,  Christian Sidot ,  Christian Tellier ,  Jean-Francois Lelong

    Inventor： Hans-Robert Damrau ,  Patrik Muller ,  Valerie Garcia ,  Christian Sidot ,  Christian Tellier ,  Jean-Francois Lelong

    IPC: C07F17/00

    CPC classification number: C07F17/00 ,  C07F15/0073 ,  C08F10/00 ,  Y10S526/943 ,  C08F4/65927

    Abstract: The present invention relates to a specific process for the diastereoselective synthesis of rac-diorganosilylbis(2-methylbenzo[e]indenyl)zirconium compounds of the formula I, by reacting the silyl-bridged bisindenyl ligand with a dihalozirconium bis(3,5-di-tert-butylphenoxide)-base adduct to form the diorganosilylbis(2-methylbenzo[e]indenyl)zirconium bis(3,5-di-tert-butylphenoxide) and subsequently replacing the phenoxide groups by X using suitable replacement reagents to give the compound of the formula I; where the substituents X can be identical or different and are each F, Cl, Br, I or linear, cyclic or branched C1-10-alkyl; and the substituents R can be identical or different and are each linear, cyclic or branched C1-10-alkyl or C6-10-aryl; and also to the use of these compounds as catalysts.

    Abstract translation: 本发明涉及通过使甲硅烷基桥连的双茚基配体与二卤代双（3,5-二（二苯基）环己基）二卤代锆反应来非对映选择性合成式I的外消旋二有机甲硅烷基双（2-甲基苯并[e]茚基） - 叔丁基苯酚） - 基加成物形成二有机甲硅烷基双（2-甲基苯并[e]茚基）双（3,5-二叔丁基苯氧基）锆，随后用合适的替代试剂将X代替苯酚基，得到化合物 式I; 其中取代基X可以相同或不同，并且各自为F，Cl，Br，I或直链，环状或支链C 1-10 - 烷基; 并且取代基R可以相同或不同，并且各自是直链，环状或支链C 1-10 - 烷基或C 6-10 - 芳基; 以及这些化合物作为催化剂的使用。

    Sodium orthohydroxymandelate/phenol/water complex, preparation process and use for isolation of sodium orthohydroxymandelate
    25.
    发明授权
    Sodium orthohydroxymandelate/phenol/water complex, preparation process and use for isolation of sodium orthohydroxymandelate 失效
    原羟基扁桃酸钠/苯酚/水络合物，制备方法和用于分离原羟基扁桃酸钠

    公开(公告)号：US5750775A

    公开(公告)日：1998-05-12

    申请号：US715634

    申请日：1996-09-18

    Applicant: Christian Sidot ,  Michel Tarlier

    Inventor： Christian Sidot ,  Michel Tarlier

    IPC: C07B63/00 ,  C07C39/04 ,  C07C59/11 ,  C07C59/52 ,  C07C59/48

    CPC classification number: C07C59/52

    Abstract: A crystallized sodium orthohydroxymandelate-phenol-water complex, its preparation process in which phenol (P.sub.2) is introduced into an aqueous solution S at a pH comprised between 7 and 9.5 in order to obtain the expected product which is crystallized, the aqueous solution S being such as that resulting from the reaction of phenol (P.sub.1) with glyoxylic acid in the presence of a tertiary amine and of a trivalent cation, then treatment using a solution of an alkaline hydroxide, use of this complex for the preparation of sodium orthohydroxymandelate (NaOHM), preparation process for the latter from the starting complex.

    Abstract translation: 一种结晶的邻羟基扁桃酸钠 - 苯酚 - 水络合物的复合物，其制备方法是将苯酚（P2）引入水溶液S中，pH为7至9.5，以获得预期的结晶产物，水溶液S为 例如在叔胺和三价阳离子存在下苯酚（P1）与乙醛酸反应产生的那些，然后使用碱性氢氧化物溶液进行处理，使用该络合物制备原羟基扁桃酸钠（NaOHM ），后者从起始复合物的制备过程。

    Pure crystalline methyl 2-acryloylamino-2-methoxy acetate and a process for preparing IT
    27.
    发明授权
    Pure crystalline methyl 2-acryloylamino-2-methoxy acetate and a process for preparing IT 失效
    纯的2-丙烯酰氨基-2-甲氧基乙酸甲酯结晶性甲酯和制备IT的方法

    公开(公告)号：US4960923A

    公开(公告)日：1990-10-02

    申请号：US266485

    申请日：1988-11-02

    Applicant: Yani Christidis ,  Christian Sidot

    Inventor： Yani Christidis ,  Christian Sidot

    IPC: C07C233/16

    CPC classification number: C07C233/16

    Abstract: The process for preparing a novel product, pure crystalline methyl 2-acryloylamino-2-methoxyacetate, involves reacting pure crystalline, anhydrous acrylamido-glycolic acid in an anhydrous medium with methanol in the presence of hydrogen chloride. This is subsequently neutralized with an alkali metal bicarbonate, and then the mineral salts are filtered off. Finally, pure crystalline methyl 2-acryloylamino-2-methoxyacetate is obtained by taking up the concentrated reaction medium in 1,1,1-trichloroethane under vacuum.

    Abstract translation: 制备新型产物2-丙烯酰氨基-2-甲氧基乙酸酯的纯结晶性甲基丙烯酸酯的方法包括使无水介质中的纯结晶无水丙烯酰氨基乙醇酸与甲醇在氯化氢存在下反应。 随后用碱金属碳酸氢盐中和，然后滤出矿物盐。 最后，通过在真空下将1,1,1-三氯乙烷中的浓缩反应介质吸收，得到纯的2-丙烯酰基氨基-2-甲氧基乙酸2-甲酯。

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