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    METHOD FOR PRODUCING M-XYLYLENE DIISOCYANATE
    3.
    发明公开
    METHOD FOR PRODUCING M-XYLYLENE DIISOCYANATE 有权
    VERFAHREN ZUR HERSTELLUNG VON M-XYLYLEN-DIISOCYANAT

    公开(公告)号：EP3037410A4

    公开(公告)日：2017-05-03

    申请号：EP14838284

    申请日：2014-08-11

    申请人： MITSUI CHEMICALS INC

    发明人： KOJIMA KOUYA ,  TSUKADA HIDETAKA ,  TAKASHINA MAMORU ,  SHIMAKAWA CHITOSHI ,  KAKINUMA NAOYUKI

    IPC分类号： C07C263/04 ,  C07C209/48 ,  C07C253/28 ,  C07C265/14 ,  C07C269/00 ,  C07C269/06 ,  C07C271/14 ,  C07C271/20 ,  C07C273/18 ,  C07C275/24

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

    摘要： 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 acid concentration of more than 90 mass%, and the reaction temperature is more than 10°C. General formula (1): (in general formula (1), R 1 represents an alkoxy group or an amino group).

    摘要翻译： 作为间苯二甲基二异氰酸酯的制造方法，可以列举在酸性液体的存在下使单卤代苯，甲醛类和下述通式（1）所示的酰胺化合物反应而生成双酰胺化合物的反应工序， 脱卤化步骤，其中在双酰胺化合物中，源自单卤代苯的卤素原子被氢原子置换; 以及热分解步骤，其中消除卤素原子的双酰胺化合物经受热分解。 在反应步骤中，酸性液体含有无机酸，无机酸的氢原子相对于单卤代苯的当量比大于14，酸性液体的酸浓度大于90质量％，并且反应 温度超过10°C。 通式（1）:(通式（1）中，R 1表示烷氧基或氨基。

    METHOD FOR PRODUCING M-XYLYLENEDIAMINE AND METHOD FOR PRODUCING BISAMIDE COMPOUND
    6.
    发明公开
    METHOD FOR PRODUCING M-XYLYLENEDIAMINE AND METHOD FOR PRODUCING BISAMIDE COMPOUND 审中-公开
    用于生产间苯二甲胺和方法用于制备双酰胺化合物

    公开(公告)号：EP3037406A4

    公开(公告)日：2017-03-29

    申请号：EP14838298

    申请日：2014-08-11

    申请人： MITSUI CHEMICALS INC

    发明人： KOJIMA KOUYA ,  TSUKADA HIDETAKA ,  TAKASHINA MAMORU ,  SHIMAKAWA CHITOSHI ,  KAKINUMA NAOYUKI

    IPC分类号： C07C209/62 ,  C07C211/27 ,  C07D209/48

    CPC分类号： C07D209/48 ,  C07C209/62 ,  C07C211/27

    摘要： 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.