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    METHOD FOR PRODUCING META-XYLYLENEDIAMINES AND METHOD FOR PRODUCING BISAMIDE COMPOUND
    5.
    发明申请
    METHOD FOR PRODUCING META-XYLYLENEDIAMINES AND METHOD FOR PRODUCING BISAMIDE COMPOUND 有权
    用于生产甲基二硅氧烷的方法和用于生产双胺化合物的方法

    公开(公告)号：US20160185722A1

    公开(公告)日：2016-06-30

    申请号：US14903262

    申请日：2014-08-11

    Applicant: MITSUI CHEMICALS, INC.

    Inventor： Kouya KOJIMA ,  Hidetaka TSUKADA ,  Mamoru TAKASHINA ,  Chitoshi SHIMAKAWA ,  Naoyuki KAKINUMA

    IPC: C07D209/48 ,  C07C209/62

    CPC classification number: C07D209/48 ,  C07C209/62 ,  C07C211/27

    Abstract: A method for producing meta-xylylenediamines includes a reaction step in which monohalogenated benzenes, formaldehydes, and an amide compound having a primary amide group or a secondary amide group are allowed to react in the presence of an acidic liquid, a dehalogenation step in which the halogen atom derived from the monohalogenated benzenes is replaced with a hydrogen atom, and a deprotection step in which the primary amide group or the secondary amide group derived from the amide compound is converted to an amino group. In the reaction step, the acidic liquid contains inorganic acid, the equivalent ratio of the hydrogen atom of the inorganic acid relative to the monohalogenated benzenes is more than 16; the acidic liquid has an inorganic acid concentration of more than 80 mass %; and the reaction temperature is more than 40° C.

    Abstract translation: 一种生产间二甲苯二胺的方法包括一种反应步骤，其中使单卤代苯，甲醛和具有伯酰胺基或仲酰胺基的酰胺化合物在酸性液体存在下反应，其中脱卤步骤 衍生自单卤代苯的卤素原子被氢原子取代，其中将来自酰胺化合物的伯酰胺基或仲酰胺基转化为氨基的脱保护步骤。 在反应步骤中，酸性液体含有无机酸，无机酸相对于单卤代苯的当量比大于16; 酸性液体的无机酸浓度大于80质量％ 反应温度大于40℃。

    METHOD FOR PRODUCING META-XYLYLENEDIISOCYANATES
    6.
    发明申请
    METHOD FOR PRODUCING META-XYLYLENEDIISOCYANATES 有权
    生产甲基苯乙烯二异氰酸酯的方法

    公开(公告)号：US20160145201A1

    公开(公告)日：2016-05-26

    申请号：US14903268

    申请日：2014-08-11

    Applicant: MITSUI CHEMICALS, INC.

    Inventor： Kouya KOJIMA ,  Hidetaka TSUKADA ,  Mamoru TAKASHINA ,  Chitoshi SHIMAKAWA ,  Naoyuki KAKINUMA

    IPC: C07C263/06 ,  C07C273/18

    CPC classification number: C07C263/06 ,  C07C209/48 ,  C07C253/28 ,  C07C263/04 ,  C07C269/00 ,  C07C269/06 ,  C07C271/20 ,  C07C273/1809 ,  C07C273/1854 ,  C07C265/14 ,  C07C271/14 ,  C07C275/24

    Abstract: A method for producing meta-xylylenediisocyanates includes a reaction step in which monohalogenated benzenes, formaldehydes, and an amide compound represented by general formula (1) below are allowed to react in the presence of an acidic liquid to produce a bisamide compound; a dehalogenation step in which in the bisamide compound, the halogen atom derived from the monohalogenated benzenes is replaced with a hydrogen atom; and a thermal decomposition step in which the bisamide compound from which the halogen atom is eliminated is subjected to thermal decomposition. In the reaction step, the acidic liquid contains inorganic acid, the equivalent ratio of the hydrogen atom of the inorganic acid relative to the monohalogenated benzenes is more than 14, the acidic liquid has an inorganic acid concentration of more than 90 mass %, and the reaction temperature is more than 10° C. General formula (1): wherein R1 represents an alkoxy group or an amino group.

    Abstract translation: 一种产生间二甲苯二异氰酸酯的方法包括使一卤代苯，甲醛和下述通式（1）表示的酰胺化合物在酸性液体存在下反应生成双酰胺化合物的反应步骤; 一种脱卤步骤，其中在双酰胺化合物中，衍生自单卤代苯的卤素原子被氢原子取代; 和其中除去卤素原子的双酰胺化合物进行热分解的热分解步骤。 在反应工序中，酸性液体含有无机酸，无机酸相对于单卤代苯的当量比大于14，酸性液体的无机酸浓度大于90质量％， 反应温度大于10℃。通式（1）：其中R1表示烷氧基或氨基。

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