Process for the preparation of 5-amino-2,4,6-Triiodoisophthalic acid
dichloride by chlorination with thionyl chloride in the presence of a
catalyst
    31.
    发明授权
    Process for the preparation of 5-amino-2,4,6-Triiodoisophthalic acid dichloride by chlorination with thionyl chloride in the presence of a catalyst 失效
    在催化剂存在下用亚硫酰氯氯化制备5-氨基-2,4,6-三碘邻苯二甲酸二氯化物的方法

    公开(公告)号:US5663432A

    公开(公告)日:1997-09-02

    申请号:US649490

    申请日:1996-05-17

    CPC分类号: C07C227/18

    摘要: A process for the preparation of 5-amino-2,4,6-triiodoisophthalic acid dichloride by chlorination of 5-amino-2,4,6-triiodoisophthalic acid with thionyl chloride in the presence of a suitable solvent characterized in that the reaction is carried out in the presence of catalytic amounts of a tetraalkylammonium salt of formulaR.sub.1 R.sub.2 R.sub.3 R.sub.4 NX (I)wherein X is halogen, mesylate or tosylate; R.sub.1, R.sub.2, R.sub.3 and R.sub.4, the same or different, are C.sub.1 -C.sub.20 alkyl groups so that the total number of carbon atoms of the groups R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is higher than 16.The 5-amino-2,4,6-triiodoisophthalic acid dichloride obtained according to the process of the present invention is useful as intermediate in the synthesis of iodinated contrast media.

    摘要翻译: 通过在合适的溶剂存在下,用亚硫酰氯氯化5-氨基-2,4,6-三碘代邻苯二甲酸制备5-氨基-2,4,6-三碘代邻苯二甲酸二氯化物的方法,其特征在于反应是 在催化量的式R 1 R 2 R 3 R 4 N X(I)的四烷基铵盐的存在下进行,其中X是卤素,甲磺酸酯或甲苯磺酸酯; R 1,R 2,R 3和R 4相同或不同,为C 1 -C 20烷基,使得R 1,R 2,R 3和R 4基团的总碳原子数高于16.将5-氨基-2,4 根据本发明方法获得的6-三碘间苯二甲酰氯可用作合成碘化造影剂的中间体。

    Electro-optic devices
    34.
    发明授权

    公开(公告)号:US09798164B2

    公开(公告)日:2017-10-24

    申请号:US13822250

    申请日:2011-09-08

    摘要: An electro-optic device 200 comprising a substrate in which first and second waveguides 202, 203 are formed. The device also comprises first and second electrodes 204, 205 comprising an optically transparent conductive material and including primary portions 204a, 205a overlying the first and second waveguides 202, 203 for electrically biasing the first and second waveguides. The device is configured such that one of the first and second electrodes includes one other portion 204b, 205b arranged alongside the primary portion 204a, 205a of the other of the first and second electrodes. This arrangement improves the electro-optic efficiency of the device without the need for a buffer layer in the electrodes.

    METHOD FOR MANUFACTURE OF SERTINDOLE
    38.
    发明申请
    METHOD FOR MANUFACTURE OF SERTINDOLE 审中-公开
    方法制造系列

    公开(公告)号:US20090264656A1

    公开(公告)日:2009-10-22

    申请号:US12360338

    申请日:2009-01-27

    IPC分类号: C07D401/04

    CPC分类号: C07D401/14 C07D209/08

    摘要: The present invention relates to a novel method for manufacture of sertindole comprising manufacturing 5-chloro-1-(4-fluorophenyl)-indole and converting it to sertindole wherein the method for manufacture of 5-chloro-1-(4-fluorophenyl)-indole comprises reacting 5-chloro-indole with a 4-fluorophenylhalide in the presence of a base, a chelating ligand and catalytic amounts or a copper salt comprising copper(I) or copper(II) and an anion which does not interfere in an unfavourable way with the reaction.

    摘要翻译: 本发明涉及一种制造塞丁醇的新方法,其包括制备5-氯-1-(4-氟苯基) - 吲哚并将其转化为三氢吲哚,其中制备5-氯-1-(4-氟苯基) - 吲哚的方法, 吲哚包括在碱,螯合配体和催化量存在下使5-氯 - 吲哚与4-氟苯基卤反应,或包含铜(I)或铜(II)的铜盐和不干扰不利的阴离子 方式与反应。