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29 条记录 (耗时 0.015 秒)

    Preparation of cinnamate esters
    2.
    发明公开
    Preparation of cinnamate esters 失效
    Herstellung vonZimtsäureestern。

    公开(公告)号：EP0242072A1

    公开(公告)日：1987-10-21

    申请号：EP87302670.2

    申请日：1987-03-27

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Takaki, Usaji ,  Yamamoto, Yoshihiro ,  Matsuhisa, Toshio ,  Sudo, Isamu ,  Aoki, Shinobu Mitsui Toatsu Kosugaya

    IPC分类号： C07C69/618 ,  C07C67/38 ,  B01J27/32

    CPC分类号： C07C69/618 ,  Y02P20/584

    摘要： Disclosed herein is a process for preparing a corresponding cinnamate ester by reacting a styrene compound, carbon monoxide, an alcohol and oxygen by the use of (l) metallic palladium or a compound thereof, (2) a copper compound, (3) a compound of at least one metal selected from Groups 4A, 5A, 7A, 8A (the iron group only) and 2B in the Periodic Table and (4) a halogen compound as a catalyst which comprises treating the catalyst components recovered from the reaction liquid after completion of the reaction with an oxidizing agent in the presence of an organic acid to regenerate their catalytic activity, using the resulting catalyst components again in the reaction as a catalyst and repeating the foregoing procedure.
    The regenerated catalyst is recovered in catalytic activity to the extent of that of a fresh catalyst and thus gives a high reaction performance in the subsequent reaction. Thus, the catalyst contain­ing expensive metal can be used circulatively.

    摘要翻译： 本文公开了一种通过使用（1）金属钯或其化合物使苯乙烯化合物，一氧化碳，醇和氧反应制备相应的肉桂酸酯的方法，（2）铜化合物，（3）化合物 的选自4A，5A，7A，8A（仅铁族）和2B中的至少一种金属，以及（4）作为催化剂的卤素化合物，其包括处理在完成后从反应液中回收的催化剂组分 在有机酸存在下与氧化剂反应以再生其催化活性，在反应中再次使用所得催化剂组分作为催化剂，并重复上述步骤。 再生催化剂的催化活性回收到新鲜催化剂的催化活性，因此在随后的反应中得到高的反应性能。 因此，可以循环使用含有贵金属的催化剂。

    Process for the preparation of indigo compounds
    3.
    发明公开
    Process for the preparation of indigo compounds 失效
    Verfahren zur Herstellung von Indigoverbindungen。

    公开(公告)号：EP0487322A1

    公开(公告)日：1992-05-27

    申请号：EP91310686.0

    申请日：1991-11-20

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Yamamoto, Yoshihiro ,  Takaki, Usaji ,  Aoki, Shinobu ,  Inoue, Yoshihisa ,  Hara, Isao

    IPC分类号： C09B7/02

    CPC分类号： C09B7/02

    摘要： An indigo compound is prepared from a corresponding indole compound which is unsubstituted at the 2- and 3- positions. The indole compound and an organic hydroperoxide are reacted in the presence of a catalyst which is a metal selected from the group consisting of the metals of Groups 4, 5 and 6 of the periodic table or a compound of the metal. The reaction is conducted while taking out water from a reaction system, said water being that introduced in the reaction system or formed during the reaction, or while controlling the amount of water, which is introduced in the reaction system, at a level not greater than 1 mole per mole of the indole compound.

    摘要翻译： 由相应的吲哚化合物制备靛蓝化合物，其在2-和3-位未被取代。 吲哚化合物和有机氢过氧化物在选自周期表第4,5,6族金属的金属或金属化合物的催化剂存在下反应。 反应在从反应体系中取出水的同时进行，所述水是在反应体系中引入或形成的水，或者在引入到反应体系中的水的量控制在不大于 每摩尔吲哚化合物1摩尔。

    Method for obtaining high-purity cinnamic acid
    4.
    发明公开
    Method for obtaining high-purity cinnamic acid 失效
    Verfahren zur Gewinnung von hochreinerZinntsäure。

    公开(公告)号：EP0484122A2

    公开(公告)日：1992-05-06

    申请号：EP91310005.3

    申请日：1991-10-30

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Itoh, Hiroyuki ,  Kono, Yoshitsugu ,  Taneda, Ryoichi ,  Takaki, Usaji

    IPC分类号： C07C51/487 ,  C07C51/47

    CPC分类号： C07C51/47 ,  C07C51/487 ,  C07C57/44

    摘要： There is here disclosed a method for obtaining high-purity cinnamic acid containing less metals from crude cinnamic acid containing a metallic catalyst which is a mixture prepared by the synthetic reaction of a cinnamic acid ester. A disclosed purifying means is the combination of alkali hydrolysis, active carbon adsorption, solvent extraction and precipitation with an acid.

    摘要翻译： 这里公开了一种从粗肉桂酸获得含有较少金属的高纯度肉桂酸的方法，该肉桂酸含有通过肉桂酸酯的合成反应制备的混合物的金属催化剂。 公开的纯化方法是碱水解，活性炭吸附，溶剂萃取和酸与酸的沉淀的组合。

    Process for the preparation of indigo compounds
    7.
    发明公开
    Process for the preparation of indigo compounds 失效
    Verfahren zur Herstellung von Indigoverbindungen。

    公开(公告)号：EP0339887A1

    公开(公告)日：1989-11-02

    申请号：EP89304005.5

    申请日：1989-04-21

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Yamamoto, Yoshihiro ,  Takaki, Usaji ,  Aoki, Shinobu 2-11, Mitsui Toatsu Kosugaya Apaato ,  Hara, Isao 4-18, Mitsui Toatsu Apaato

    IPC分类号： C07D209/36

    CPC分类号： C07D209/36 ,  C09B7/02

    摘要： Disclosed is a process for preparing an indigo compound in improved yield by reacting an indole compound having no substituent at the 2- and 3-positions with an organic hydroperoxide in the presence of an additive selected from the group consisting of (1) a carboxyl-containing compound and (2) a boric acid ester compound. The yield of the indigo compound can further be increased by using a metallic compound catalyst capable of oxidizing carbon atom at the 3-­position of the indole compound, such as a compound of a metal of group 4A, 5A or 6A of the periodic table.

    摘要翻译： 公开了一种制备靛蓝化合物的方法，其通过使选自以下的添加剂存在下使在2-位和3-位没有取代基的吲哚化合物与有机氢过氧化物反应来制备靛蓝化合物：（1）羧基 - （2）硼酸酯化合物。 通过使用能够在吲哚化合物的3-位氧化碳原子的金属化合物催化剂，例如周期表的4A，5A或6A族金属的化合物，可以进一步提高靛蓝化合物的产率。