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    Process for the preparation of cyclopropane carboxylic acids
    2.
    发明授权
    Process for the preparation of cyclopropane carboxylic acids 有权
    制备环丙烷羧酸的方法

    公开(公告)号：US06215023B1

    公开(公告)日：2001-04-10

    申请号：US09622444

    申请日：2000-08-17

    申请人： Per Dausell Klemmensen ,  Hans Kolind-Andersen ,  Ib Winckelmann

    发明人： Per Dausell Klemmensen ,  Hans Kolind-Andersen ,  Ib Winckelmann

    IPC分类号： C07C6104

    CPC分类号： C07C51/377 ,  C07C61/35

    摘要： Preparation of cyclopropane carboxylic acids usable as intermediates and of formula (II), wherein R1 represents halogen, preferably Cl or Br, or haloalkyl, preferably CF3, and X2 represents halogen, preferably Cl or Br, where R1 or X2 may be the same or different, and wherein the configuration of (II) is predominantly Z for R1=CF3 and X2=Cl; by reacting, in the presence of a catalyst, a compound of formula (I), wherein R1 and X2 are as defined, and X1 represents halogen, preferably Cl or Br, where R1, X1 and X2 may be the same or different, with a compound which is a hydrogen donor.

    摘要翻译： 可用作中间体和式（II）的环丙烷羧酸的制备，其中R 1表示卤素，优选Cl或Br，或卤代烷基，优选CF 3，X 2表示卤素，优选Cl或Br，其中R 1或X 2可以相同或 并且其中（II）的构型主要为R1，R1 = CF3和X2 = Cl; 在催化剂存在下，通过使式（I）化合物（其中R 1和X 2如上所定义）反应，并且X 1表示卤素，优选Cl或Br，其中R 1，X 1和X 2可以相同或不同，与 是氢供体的化合物。

    Process for racemizing optically active vinyl-substituted cyclopropanecarboxylic acid compound
    3.
    发明授权
    Process for racemizing optically active vinyl-substituted cyclopropanecarboxylic acid compound 失效
    光学活性乙烯基取代的环丙烷羧酸化合物外消旋化方法

    公开(公告)号：US06750370B2

    公开(公告)日：2004-06-15

    申请号：US10195409

    申请日：2002-07-16

    申请人： Hiroshi Souda ,  Kazunori Iwakura ,  Fumisato Goto

    发明人： Hiroshi Souda ,  Kazunori Iwakura ,  Fumisato Goto

    IPC分类号： C07C6104

    CPC分类号： C07C51/353 ,  C07C67/333 ,  C07C61/37 ,  C07C61/35 ,  C07C61/40 ,  C07C69/747 ,  C07C69/743

    摘要： There is disclosed a process for the racemization of a vinyl-substituted cyclopropanecarboxylic acid or a derivative thereof, which is characterized by reacting an optically active vinyl-substituted cyclopropanecarboxylic acid compound of formula (1): wherein R1, R2, R3 and R4 each independently represent a hydrogen atom, a halogen atom, alkyl which may be substituted having 1-4 carbon atoms, aryl which may be substituted, or alkoxycarbonyl which may be substituted, or R1 and R2 are bonded to form an alkylene group, which may be substituted; and wherein X represents hydroxyl, a halogen atom, alkoxy which may be substituted having 1-20 carbon atoms, or aryloxy which may be substituted, with a nitric compound or a nitrogen oxide.

    摘要翻译： 公开了乙烯基取代的环丙烷羧酸或其衍生物外消旋化的方法，其特征在于使式（1）的光学活性乙烯基取代的环丙烷羧酸化合物：其中R 1，R 2， R 3和R 4各自独立地表示氢原子，卤素原子，可被取代有1-4个碳原子的烷基，可被取代的芳基，或可被取代的烷氧基羰基，或R 1和R 2 <2>键合以形成可以被取代的亚烷基; 并且其中X表示羟基，卤素原子，可被取代有1-20个碳原子的烷氧基，或可被取代的芳氧基，与硝酸化合物或氮氧化物反应。