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    Meso-selective synthesis of ansa-metallocenes
    11.
    发明申请
    Meso-selective synthesis of ansa-metallocenes 有权

    公开(公告)号：US20070155920A1

    公开(公告)日：2007-07-05

    申请号：US10583574

    申请日：2004-12-15

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

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

    IPC: C07F17/00 ,  C08F4/44

    CPC classification number: C07F17/00 ,  C08F10/00 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/65927

    Abstract: The present invention relates to a process for the meso-selective 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, 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 a bulky organic radical which has at least 3 carbon atoms, is bound to the oxygen atom via a nonaromatic carbon or silicon atom and may be substituted by halogen atoms or further organic radicals having from 1 to 20 carbon atoms and may also contain heteroatoms selected from the group consisting of Si, N, P, O and S, 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 having 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 is able to be replaced by a cyclopentadienyl anion, x is a natural number from 1 to 4, 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 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 the subsequent reaction of these complexes to form ansa-metallocenes of the formula (IV), the use of transition metal compounds of the formula (III) for preparing metallocenes and also transition metal compounds of the formula (III), ansa-metallocene complexes of the formula (I) and the use of these as constituents of catalyst systems for the polymerization of olefines.

    Pure anhydrous crystallized acrylamidoglycolic acid and a method for the preparation thereof
    14.
    发明授权
    Pure anhydrous crystallized acrylamidoglycolic acid and a method for the preparation thereof 失效
    纯无水结晶的丙烯酰基甘醇酸及其制备方法

    公开(公告)号：US4810822A

    公开(公告)日：1989-03-07

    申请号：US208787

    申请日：1988-06-15

    Applicant: Christian Sidot ,  Yani Christidis

    Inventor： Christian Sidot ,  Yani Christidis

    IPC: C07C233/45 ,  C07C103/133 ,  C07C102/04

    CPC classification number: C07C233/45

    Abstract: This acid is prepared by a method comprising reacting acrylamide with glyoxylic acid in an aqueous solution at a concentration equal to or higher than 60% and at a temperature of between 30.degree. C. and 80.degree. C., this method being characterized in that this reaction is carried out at a pH of less than 7, in the absence of a catalyst of any type whatsoever but in the presence of an organic solvent selected from the group comprising ethyl acetate, butyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, tetrahydrofuran, diethylene glycol dimethyl ether.

    Abstract translation: 该酸通过包括使丙烯酰胺与乙醛酸在水溶液中以等于或高于60％的温度和30℃至80℃的温度反应的方法制备，该方法的特征在于， 反应在小于7的pH下进行，在不存在任何类型的催化剂的情况下，但在有机溶剂存在下，选自乙酸乙酯，乙酸丁酯，丙酮，甲基乙基酮，甲基异丁基酮 ，四氢呋喃，二甘醇二甲醚。

    Method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexes
    15.
    发明授权
    Method for producing 3,7-diaza-bicyclo[3.3.1]nonane metal complexes 有权
    制备3,7-二氮杂双环[3.3.1]壬烷金属络合物的方法

    公开(公告)号：US08846921B2

    公开(公告)日：2014-09-30

    申请号：US13877567

    申请日：2011-10-06

    Applicant: Christian Sidot ,  Audrey Caron ,  Miriam Ladwig ,  Gerd Reinhardt

    Inventor： Christian Sidot ,  Audrey Caron ,  Miriam Ladwig ,  Gerd Reinhardt

    IPC: C07F15/02 ,  C07F13/00

    CPC classification number: C07F15/02 ,  C07F13/00 ,  C07F13/005 ,  C07F15/025

    Abstract: The invention relates to a method for producing metal complexes of formula (2) [MaLxXn]Ym (2), where M is a metal from the group consisting of Mn(II), Mn(III), Mn(IV), Fe(II), Fe(III) or Fe(IV), X is a coordinating compound selected from mono-, bi- or tri-charged anions or neutral molecules which can coordinate to a metal in mono-, bi- or tri-dentate form, Y represents a non-coordinating counter-ion which ensures charge equalization of the complex, L represents a ligand of formula (1) or the protonized or de-protonized form thereof, and a, x, n, m, R, R1, R2, R3 and z have the meanings described in claim 1. Said method is characterized in that the reaction of one or more ligands of formula (1) with an iron salt or manganese salt is carried out in an acetone/water mixture in a temperature range from 0 to 50° C. and for this purpose a solution or a suspension of the one or more ligands of formula (1) in acetone is brought in contact with an aqueous metal salt solution of the iron salt or manganese salt in the temperature range in which the reaction takes place.

    Abstract translation: 本发明涉及一种制备式（2）[MaLxXn] Ym（2）的金属配合物的方法，其中M是由Mn（II），Mn（III），Mn（IV），Fe（ II），Fe（III）或Fe（IV），X是选自单，双或三电荷阴离子或中性分子的配位化合物，其可以以单，双或三齿形式与金属配位 ，Y表示非配位抗衡离子，其确保络合物的电荷均衡，L表示式（1）的配体或其质子化或去质子化形式，和a，x，n，m，R，R 1， R2，R3和z具有权利要求1所述的含义。所述方法的特征在于，式（1）的一种或多种配体与铁盐或锰盐的反应在丙酮/水混合物中在温度 范围为0至50℃，为此目的，将式（1）的一种或多种配体在丙酮中的溶液或悬浮液与铁盐水溶液的金属盐溶液接触 r锰盐在发生反应的温度范围内。

    Preparation process for piperonal
    20.
    发明授权
    Preparation process for piperonal 失效
    PIPERONAL的制备工艺

    公开(公告)号：US5095128A

    公开(公告)日：1992-03-10

    申请号：US608450

    申请日：1990-11-02

    Applicant: Christian Sidot ,  Yani Christidis

    Inventor： Christian Sidot ,  Yani Christidis

    IPC: C07D317/54

    CPC classification number: C07D317/54

    Abstract: Preparation process for piperonal by decarboxylating oxidation of 3,4-methylenedioxy mandelic acid by nitric acid in aqueous medium in the presence of hydrochloric acid.

    Abstract translation: 在盐酸存在下，通过硝酸在水介质中脱羧氧化3,4-亚甲二氧基扁桃酸，制备胡椒醌的制备方法。

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