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    Process for the preparation of indigo compounds
    1.
    发明授权
    Process for the preparation of indigo compounds 失效
    制备靛青化合物的方法

    公开(公告)号：US5187283A

    公开(公告)日：1993-02-16

    申请号：US796265

    申请日：1991-11-21

    申请人： Yoshihiro Yamamoto ,  Usaji Takaki ,  Shinobu Aoki ,  Yoshihisa Inoue ,  Isao Hara

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

    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.

    Preparation process of cinnamate ester
    7.
    发明授权
    Preparation process of cinnamate ester 失效
    肉桂酸酯的制备方法

    公开(公告)号：US5179224A

    公开(公告)日：1993-01-12

    申请号：US769481

    申请日：1991-10-01

    申请人： Usaji Takaki ,  Yoshihiro Yamamoto ,  Toshio Matsuhisa ,  Isamu Sudo ,  Shinobu Aoki

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

    IPC分类号： C07C69/618

    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 (1) 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，其包括在完成后处理从反应液中回收的催化剂成分 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 producing polymethylene polyphenyl polycarbamates
    9.
    发明授权
    Process for producing polymethylene polyphenyl polycarbamates 失效
    聚亚甲基多苯基聚氨酯的制备方法

    公开(公告)号：US4319018A

    公开(公告)日：1982-03-09

    申请号：US164513

    申请日：1980-07-02

    申请人： Katsuharu Miyata ,  Seiji Hasegawa ,  Shinobu Aoki ,  Isao Hara

    发明人： Katsuharu Miyata ,  Seiji Hasegawa ,  Shinobu Aoki ,  Isao Hara

    IPC分类号： C07B61/00 ,  B01J27/00 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C239/00 ,  C07C269/00 ,  C07D265/16 ,  C08G12/04 ,  C08G12/20 ,  C08G12/26 ,  C08G16/02

    CPC分类号： C07C269/06 ,  Y02P20/582

    摘要： It is disclosed that, in the process for producing polymethylene polyphenyl polycarbamates through the reaction of N-phenyl carbamate with formaldehyde or a formaldehyde-supplying substance in the presence of an acid catalyst, if the reaction is carried out in the concurrent presence of at least one compound or a mixture of at least two compounds selected from the group consisting of N-carboalkoxy (or cycloalkoxy)-2-oxa-4-aza-naphthalenes, bis(N-carboalkoxy(or cycloalkoxy)-anilino)-methanes and N,N'-dicarboalkoxy (or cycloalkoxy)aminobenzyl-anilines, the object product, polymethylene polyphenyl polycarbamate, can be obtained at a high yield. According to the present invention, also a more economical and easily aperable process for producing polymethylene polyphenyl polycarbamate is provided, by the recycling use of the named compound or compounds which have been concurrently present in the reaction system and after the reaction separated and recovered from the reaction product, and also by the recycling use of the aqueous acid solution which has been used as the catalyst, without the interceding removal of organic impurities formed in the reaction but simply with the adjustment of its acid concentration to the predetermined level.

    摘要翻译： 公开了在酸催化剂的存在下，通过氨基甲酸N-苯基酯与甲醛或甲醛供给物质的反应生产聚亚甲基多苯基聚氨基甲酸酯的方法，如果反应至少同时存在 一种化合物或至少两种选自N-烷氧基（或环烷氧基）-2-氧杂-4-氮杂 - 萘，双（N-烷氧基（或环烷氧基） - 苯胺基） - 甲烷和N ，N'-二羧基烷氧基（或环烷氧基）氨基苄基 - 苯胺，可以高产率得到目的产物聚亚甲基多苯基聚氨基甲酸酯。 根据本发明，通过循环使用已经同时存在于反应体系中的命名化合物和在反应中分离和回收反应后，还提供了生产多亚甲基聚苯基聚氨基甲酸酯的更经济且容易令人不快的方法 反应产物，还可以通过循环使用已经用作催化剂的酸性水溶液，而不用中间除去在反应中形成的有机杂质，而是简单地将其酸浓度调节到预定水平。