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    Process for production of 1-aminoanthraquinone
    2.
    发明公开
    Process for production of 1-aminoanthraquinone 失效
    1-氨基四氢呋喃的制备方法

    公开(公告)号：EP0249969A3

    公开(公告)日：1989-04-26

    申请号：EP87108717.7

    申请日：1987-06-16

    申请人： Nippon Shokubai Kagaku Kogyo Co., Ltd

    发明人： Ikeda, Noriaki ,  Sugishima, Noboru ,  Fujii, Yasushi ,  Ikuta, Shinji ,  Nakanishi, Yoshiyuki ,  Inoue, Akira

    IPC分类号： C09B1/18 ,  C07C225/34

    CPC分类号： C09B1/18

    摘要： A process for producing 1-aminoanthraquinone, which comprises
    (a) a step of oxidizing 1-nitronaphthalene in the liquid phase with an acidic aqueous solution contain­ing a ceric ion as an oxidizing agent and separating crystals containing 5-nitro-1,4-naphthoquinone and the acidic aqueous solution containing a cerium ion from the resulting reaction mixture, (b) a step of subjecting the 5-nitro-1,4-­naphthoquinone obtained in step (a) to Diels-Alder re­action with 1,3-butadiene in a solvent, precipitating crystals containing the resulting 5-nitro-1,4,4a,9a-tetra­hydroanthraquinone, separating them by filtration, sepa­rating and recovering the unreacted 1-nitronaphthalene and the solvent in the filtrate in a separation tower, and recycling 1-nitronaphthalene to step (a) for use as the starting material and re-using the recovered solvent for the Diels-Alder reaction, (c) a step of reducing 5-nitro-1,4,4a,9a-tetra­hydroanthraquinone obtained in step (b), separating crystals containing 1-aminoanthraquinone and purifying them, and (d) a step of electrolytically oxidizing the acidic aqueous solution containing a cerium ion separated in step (a) to convert the cerous ion in the acidic aqueous solution to a ceric ion and recycling the result­ing acidic aqueous solution containing a ceric ion to step (a) for re-use as the oxidizing agent.

    Process for producing 1-aminoanthraquinones
    6.
    发明公开
    Process for producing 1-aminoanthraquinones 失效
    生产1-氨基四氢呋喃的方法

    公开(公告)号：EP0331420A3

    公开(公告)日：1991-01-16

    申请号：EP89301961.2

    申请日：1989-02-28

    申请人： NIPPON SHOKUBAI KAGAKU KOGYO CO. LTD.

    发明人： Sugishima, Noboru ,  Ikeda, Noriaki ,  Fujii, Yasushi ,  Inoue, Akira

    IPC分类号： C07C50/18 ,  C09B1/22

    CPC分类号： C25B3/04 ,  C07C221/00 ,  C07C225/34

    摘要： A process for producing 1-aminoanthraquinones represented by formula (C)
    wherein R¹ and R², independently from each other, denote one type selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms and a halogen atom,
    which comprises converting 5-nitro-1,4,4a,9a-tetrahydro­anthraquinones represented by formula (A)
    wherein R¹ and R² are as defined above,
    into 1-hydroxylaminoanthraquinones represented by formula (B)
    wherein R¹ and R² are as defined above,
    in the presence of a basic compound, and electrolytically reducing the resulting 1-hydroxylaminoanthraquinones in the presence of a basic compound.

    Process for producing 1-aminoanthraquinones
    7.
    发明公开
    Process for producing 1-aminoanthraquinones 失效
    Verfahren zur Herstellung von 1-Aminoanthrachinonen。

    公开(公告)号：EP0331420A2

    公开(公告)日：1989-09-06

    申请号：EP89301961.2

    申请日：1989-02-28

    申请人： NIPPON SHOKUBAI KAGAKU KOGYO CO. LTD.

    发明人： Sugishima, Noboru ,  Ikeda, Noriaki ,  Fujii, Yasushi ,  Inoue, Akira

    IPC分类号： C07C50/18 ,  C09B1/22

    CPC分类号： C25B3/04 ,  C07C221/00 ,  C07C225/34

    摘要： A process for producing 1-aminoanthraquinones represented by formula (C)
    wherein R¹ and R², independently from each other, denote one type selected from a hydrogen atom, an alkyl group having 1 to 4 carbon atoms and a halogen atom,
    which comprises converting 5-nitro-1,4,4a,9a-tetrahydro­anthraquinones represented by formula (A)
    wherein R¹ and R² are as defined above,
    into 1-hydroxylaminoanthraquinones represented by formula (B)
    wherein R¹ and R² are as defined above,
    in the presence of a basic compound, and electrolytically reducing the resulting 1-hydroxylaminoanthraquinones in the presence of a basic compound.

    摘要翻译： 由式（C）表示的1-氨基蒽醌的方法其中R 1和R 2彼此独立地表示选自氢原子，具有1至4个碳原子的烷基的一种类型 和卤素原子，其包括将由式（A）表示的5-硝基-1,4,4a，9a-四氢蒽醌（其中R 1和R 2如上所定义）转化为1-羟基氨基蒽醌，其表示为 在碱性化合物的存在下，通过式（B）其中R 1和R 2如上定义，并在碱性化合物的存在下电解还原所得的1-羟基氨基蒽醌。

    Process for production of 1-aminoanthraquinone
    8.
    发明公开
    Process for production of 1-aminoanthraquinone 失效
    Verfahren zur Herstellung von 1-Aminoanthrachinon。

    公开(公告)号：EP0249969A2

    公开(公告)日：1987-12-23

    申请号：EP87108717.7

    申请日：1987-06-16

    申请人： Nippon Shokubai Kagaku Kogyo Co., Ltd

    发明人： Ikeda, Noriaki ,  Sugishima, Noboru ,  Fujii, Yasushi ,  Ikuta, Shinji ,  Nakanishi, Yoshiyuki ,  Inoue, Akira

    IPC分类号： C09B1/18 ,  C07C225/34

    CPC分类号： C09B1/18

    摘要： A process for producing 1-aminoanthraquinone, which comprises

    (a) a step of oxidizing 1-nitronaphthalene in the liquid phase with an acidic aqueous solution contain­ing a ceric ion as an oxidizing agent and separating crystals containing 5-nitro-1,4-naphthoquinone and the acidic aqueous solution containing a cerium ion from the resulting reaction mixture,
    (b) a step of subjecting the 5-nitro-1,4-­naphthoquinone obtained in step (a) to Diels-Alder re­action with 1,3-butadiene in a solvent, precipitating crystals containing the resulting 5-nitro-1,4,4a,9a-tetra­hydroanthraquinone, separating them by filtration, sepa­rating and recovering the unreacted 1-nitronaphthalene and the solvent in the filtrate in a separation tower, and recycling 1-nitronaphthalene to step (a) for use as the starting material and re-using the recovered solvent for the Diels-Alder reaction,
    (c) a step of reducing 5-nitro-1,4,4a,9a-tetra­hydroanthraquinone obtained in step (b), separating crystals containing 1-aminoanthraquinone and purifying them, and
    (d) a step of electrolytically oxidizing the acidic aqueous solution containing a cerium ion separated in step (a) to convert the cerous ion in the acidic aqueous solution to a ceric ion and recycling the result­ing acidic aqueous solution containing a ceric ion to step (a) for re-use as the oxidizing agent.

    摘要翻译： 一种生产1-氨基蒽醌的方法，其包括（a）用含有铈离子的酸性水溶液作为氧化剂在液相中氧化1-硝基萘的步骤，并分离出含有5-硝基-1,4-萘醌的晶体 和从所得反应混合物中含有铈离子的酸性水溶液，（b）使步骤（a）中得到的5-硝基-1,4-萘醌与1,3-丁二烯反应， 溶剂，沉淀含有所得5-硝基-1,4,4a，9a-四氢蒽醌的晶体，通过过滤分离，在分离塔中分离和回收滤液中的未反应的1-硝基萘和溶剂，并回收1- 硝基萘，步骤（a）用作原料并重新使用回收的溶剂进行狄尔斯 - 阿尔德反应，（c）将步骤（5）中得到的5-硝基-1,4,4a，9a-四氢蒽醌 b）分离含有1-氨基丁醇的晶体 并对其进行纯化，（d）在步骤（a）中分离出含有铈离子的酸性水溶液的电解氧化步骤，将酸性水溶液中的铈离子转化为铈离子，并将得到的含有 用于步骤（a）的铈离子用作再次用作氧化剂。 F