PROCESS FOR PRODUCING 4-(METHYLTHIO)BUTANE-1,2-DIOL
    3.
    发明公开
    PROCESS FOR PRODUCING 4-(METHYLTHIO)BUTANE-1,2-DIOL 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON 4-(甲硫基)丁烷-1,2-二醇

    公开(公告)号:EP1925612A4

    公开(公告)日:2009-07-01

    申请号:EP06782808

    申请日:2006-08-11

    发明人: HAGIYA KOJI

    IPC分类号: C07C319/18 C07C323/12

    CPC分类号: C07C319/18 C07C323/12

    摘要: A process for producing 4-(methylthio)butane-1,2-diol characterized by reacting 3-butene-1,2-diol with methanethiol in the presence of a carboxylic acid compound and at least one nitrogenous compound selected from the group consisting of nitrogenous aromatic compounds and tertiary amine compounds.

    摘要翻译: 一种生产4-(甲硫基)丁烷-1,2-二醇的方法,其特征在于在羧酸化合物和至少一种选自下列物质的含氮化合物存在下使3-丁烯-1,2-二醇与甲硫醇反应: 含氮芳族化合物和叔胺化合物。

    METHOD FOR PRODUCING HALOGEN-SUBSTITUTED BENZENEDIMETHANOL
    8.
    发明公开
    METHOD FOR PRODUCING HALOGEN-SUBSTITUTED BENZENEDIMETHANOL 有权
    VERFAHREN ZUR HERSTELLUNG VON HALOGENSUBSTITUIERTEM BENZOLDIMETHANOL

    公开(公告)号:EP1978008A4

    公开(公告)日:2009-02-25

    申请号:EP07713673

    申请日:2007-01-16

    发明人: HAGIYA KOJI

    CPC分类号: C07C29/147 C07C33/46

    摘要: Disclosed is a method for producing a halogen-substituted benzenedimethanol represented by the formula (2) below, which is characterized in that a halogen-substituted terephthalic acid represented by the formula (1) below is reacted with a boron hydride compound in an organic solvent, and the thus-obtained reaction mixture is brought into contact with hydrogen chloride at a temperature of 40-70°C. (1) (In the formula, X 1 , X 2 , X 3 and X 4 independently represent a hydrogen atom or a halogen atom, provided that all of X 1 , X 2 , X 3 and X 4 are not hydrogen atoms at the same time.) (2) (In the formula, X 1 , X 2 , X 3 and X 4 are as defined above.)

    摘要翻译: 本发明公开了由下式(2)表示的卤素取代的苯二甲醇的制备方法,其特征在于使由下式(1)表示的卤素取代的对苯二甲酸与氢化硼化合物在有机溶剂 ,并将由此得到的反应混合物在40-70℃的温度下与氯化氢接触。 (1)(式中,X 1,X 2,X 3和X 4各自独立地表示氢原子或卤素原子,条件是X 1,X 2,X 3和X 4全部不同时为氢原子。)(2) 在该式中,X1,X2,X3和X4如上所定义。)