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    Process for the preparation of epsilon-caprolactam
    11.
    发明授权
    Process for the preparation of epsilon-caprolactam 失效
    制备EPSILON-CAPROLACTAM的方法

    公开(公告)号：US3560484A

    公开(公告)日：1971-02-02

    申请号：US83417369

    申请日：1969-06-17

    Applicant: TEIJIN LTD

    Inventor： TANAKA IKUZO ,  UEHARA HIDEO ,  OSAKI HUKUE ,  YAMAGATA MASAYUKI

    IPC: C07D201/02 ,  C07D41/06

    CPC classification number: C07D201/02

    Abstract: CAPROLACTAM IS PREPARED IN A SINGLE STEP WITHOUT FORMATION OF BY-PRODUCT AMMONIUM SULFATE BY CONTACTING 2-NITROCYCLOHEXANONE AND/OR 2-NITROCYCLOHEXEN-1-O1 WITH HYDROGEN AT A TEMPERATURE RANGING FROM 150* TO 300* C. IN THE PRESENCE OF A LIQUID MEDIUM SUCH AS WATER, ALCOHOLS, ETHERS, BENZENE OR MIXTURES THEREOF AND OF AN ACTIVE HYDROGENATION CATALYST, PERFERABLY IN THE FURTHER PRESENCE OF A NITROGEN-CONTAINING BASIC SUBSTANCE SUCH AS AMMONIA. THIS INVENTION RELATS TO A NOVEL PROCESS FOR THE PREPARATION OF E-CAPROLACTAM.

    Methods of making pyrrolidones
    14.
    发明授权
    Methods of making pyrrolidones 有权
    制备吡咯烷酮的方法

    公开(公告)号：US06706893B2

    公开(公告)日：2004-03-16

    申请号：US10280577

    申请日：2002-10-25

    Applicant: Todd Werpy ,  John G. Frye, Jr. ,  Yong Wang ,  Alan H. Zacher

    Inventor： Todd Werpy ,  John G. Frye, Jr. ,  Yong Wang ,  Alan H. Zacher

    IPC: C07D207267

    CPC classification number: C07D207/267 ,  C07D201/02 ,  C07D201/08

    Abstract: The present invention provides methods for making N-methylpyrrolidine and analogous compounds via hydrogenation. Novel catalysts for this process, and novel conditions/yields are also described. Other process improvements may include extraction and hydrolysis steps. Some preferred reactions take place in the aqueous phase. Starting materials for making N-methylpyrrolidine may include succinic acid, N-methylsuccinimide, and their analogs.

    Abstract translation: 本发明提供了通过氢化制备N-甲基吡咯烷和类似化合物的方法。 还描述了用于该方法的新型催化剂和新的条件/收率。 其他工艺改进可以包括提取和水解步骤。 一些优选的反应发生在水相中。 用于制备N-甲基吡咯烷的原料可包括琥珀酸，N-甲基琥珀酰亚胺及其类似物。

    Preparation of N-substituted lactams
    16.
    发明授权
    Preparation of N-substituted lactams 失效
    N-取代的内酰胺的制备

    公开(公告)号：US5276165A

    公开(公告)日：1994-01-04

    申请号：US982300

    申请日：1992-11-25

    Applicant: Hans-Juergen Weyer ,  Rolf Fischer

    Inventor： Hans-Juergen Weyer ,  Rolf Fischer

    IPC: B01J21/04 ,  B01J23/28 ,  B01J23/34 ,  B01J23/72 ,  B01J23/75 ,  C07B61/00 ,  C07D201/02 ,  C07D201/08 ,  C07D207/26 ,  C07D207/267 ,  C07D209/46 ,  C07D209/64 ,  C07D223/10 ,  C07D225/02 ,  C07D207/12 ,  C07D221/06

    CPC classification number: C07D201/02 ,  C07D201/08 ,  C07D207/267

    Abstract: A process for the preparation of N-substituted lactams of the formula I ##STR1## where Z is C.sub.2 - to C.sub.10 -alkylene, C.sub.7 - to C.sub.12 -aralkylene, phenylene or naphthylene, andR.sup.1 is C.sub.1 - to C.sub.20 -alkyl, C.sub.6 - to C.sub.10 -aryl or C.sub.7 - to C.sub.12 -aralkyl,by hydrogenating a compound of the formula II ##STR2## where W is C.sub.2 - to C.sub.10 -alkylene, C.sub.2 - to C.sub.10 -alkenylene, C.sub.7 - to C.sub.12 -aralkylene, phenylene or naphthylene, andX and Y together form an oxa or imido bridge of the formula ##STR3## or alternatively are identical or different and are hydroxyl, C.sub.1 - to C.sub.20 -alkoxy, C.sub.6 - to C.sub.10 -aryloxy or C.sub.7 - to C.sub.12 -aralkoxy, and, if X and Y are different, Y, in addition to the abovementioned meanings, may also be hydrogen,at superatmospheric pressure and at elevated temperature in the presence of a catalyst and in the presence of an amine, which comprises using a secondary and/or tertiary amine of the formula IIINH.sub.n R.sub.3-n .sup.1where R.sup.1 is as defined above and n is 0 or 1, or a mixture of a secondary and/or teritary amine of this type with a primary amine of the formula IVR.sup.1 --NH.sub.2 (IV)as the starting material, and carrying out the reaction with addition of water and/or ammonia.

    Abstract translation: 制备式I的N-取代的内酰胺的方法（I）其中Z为C 2至C 10亚烷基，C 7至C 12 - 亚芳基，亚苯基或亚萘基，R 1为C 1 -C 20烷基 C 6 -C 10 - 芳基或C 7 - 至C 12 - 芳烷基，其中W是C 2 - 至C 10 - 亚烷基，C 2至C 10亚烯基，C 7 - 至C 12 - 亚烷基， - 亚烷基，亚苯基或亚萘基，X和Y一起形成下式的氧杂或亚氨基桥，或者可选地相同或不同，为羟基，C 1至C 20 - 烷氧基，C 6至C 10 - 芳氧基或C 7 - 对于C 12 - 芳烷氧基，并且如果X和Y不同，除了上述含义之外，Y还可以是氢，在超大气压和升高的温度下，在催化剂的存在下和在胺的存在下， 包括使用式III NH n R 3-n 1的仲和/或叔胺，其中R 1如上定义并且n为0或1，或者该仲胺和/或叔胺的混合物 以式ⅣR-NH2（Ⅳ）的伯胺为起始原料，并加入水和/或氨进行反应。

    Conversion of 2-dialkylamino-3H-azepines into epsilon caprolactams
    17.
    发明授权
    Conversion of 2-dialkylamino-3H-azepines into epsilon caprolactams 失效
    2-二烷基氨基-3H-氮杂转化为ε己内酰胺

    公开(公告)号：US4110323A

    公开(公告)日：1978-08-29

    申请号：US741838

    申请日：1976-11-15

    Applicant: Sylvain A. R. Dewaele

    Inventor： Sylvain A. R. Dewaele

    IPC: C07D201/02 ,  C07D223/12

    CPC classification number: C07D201/02 ,  C07D223/12

    Abstract: This invention relates to a process of catalytically converting nitrobenzene to 2-amino-3H-azepines by the reaction of the nitrobenzene with trisaminophosphine and an amine of the formula HNR'.sub.2, where R' is lower alkyl containing 1 to 6 carbon atoms.In addition, this invention concerns the catalytic hydrogenation of 2-amino-3H-azepine to epsilon caprolactam.

    Abstract translation: 本发明涉及通过硝基苯与三氨基膦的反应和式HNR'2的胺反应将硝基苯催化转化为2-氨基-3H-吖庚因的方法，其中R'是含有1至6个碳原子的低级烷基。

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