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    Process for cleaving 2-nitrocyclohexanone using 6-aminocaproic acid as a catalyst
    81.
    发明授权
    Process for cleaving 2-nitrocyclohexanone using 6-aminocaproic acid as a catalyst 失效
    使用6-氨基己酸作催化剂清洗2-硝基环己酮的方法

    公开(公告)号：US3708472A

    公开(公告)日：1973-01-02

    申请号：US3708472D

    申请日：1970-10-14

    Applicant: TECHNI CHEM CO

    Inventor： PIVAWER P

    IPC: C07D201/02 ,  C07D41/06

    CPC classification number: C07D201/02

    Abstract: 2-NITROCYCLOHEXANONE IS CLEAVED IN THE PRESENCE OF 6AMINOCAPROIC ACID AS A CATALYST. 6-NITROCAPROIC ACID IS PRODUCED WHICH CAN BE REDUCED WITH HYDROGEN TO 6AMINOCAPROIC ACID AND THE LATTER CYCLIZED TO CAPROLACTAM BY HEATING IN FAIRLY DILUTE AQUEOUS SOLUTION, LESS THAN 25%. THE CAPROLACTAM FORMATION IS AN EQUILIBRIUM REACTION AND SOME AMINOCAPROIC ACID REMAINS WHICH CAN BE SEPARATED AND USED AS A CATALYST IN THE CLEAVAGE OF THE 2-NITROCYCLOHEXANONE.

    Production of caprolactam starting with cyclohexanone
    82.
    发明授权
    Production of caprolactam starting with cyclohexanone 失效
    生产使用环己酮的起始物起始

    公开(公告)号：US3562254A

    公开(公告)日：1971-02-09

    申请号：US3562254D

    申请日：1969-04-24

    Applicant: TECHNI CHEM CO THE

    Inventor： SHEEHAN DESMOND ,  VELLTURO ANTHONY F ,  GAY WALTER A ,  HEGARTY WILLIAM P ,  THRELKELD DONALD D

    IPC: C07D201/02 ,  C07D41/06

    CPC classification number: C07D201/02

    Abstract: A CONTINUOUS PROCESS FOR THE PRODUCTION OF CAPROLACTAM, INCLUDING ACETYLATION OF CYCLOHEXANONE WITH ACETIC ANHYDRIDE AND KETENE (WHICH REACTS WITH ACETIC ACID FORMED IN THE ACETYLATION REACTION). THE CYCLOHEXENYL ACETATE FORMED IS THEN NITRATED WITH CONCENTRATED NITRIC ACID AND THE RESULTING NITROCYCLOHEXANONE SEPARATED BY DISTILLATION. ACETIC ANHYDRIDE IS RECYCLED TO THE ACETYLATION REACTION, AND ACETIC ACID TOGETHER WITH MAKEUP ACETIC ACID IS PYROLYZED TO KETENE, WHICH IS ALSO USED IN THE ACETYLATION REACTION. THE NITROCYCLOHEXANONE IS THEN CLEAVED WITH AMMONIUM HYDROXIDE TO FORM THE AMMONIUM SALT OF 6-NITRO CAPROIC ACID, WHICH IS THEN REDUCED WITH HYDROGEN AND A HYDROGENATION CATALYST TO PRODUCE 6-AMINO CAPROIC ACID. THIS INTERMEDIATE IS THEN SEPARATED BY REMOVING AMMONIA, WHICH IS RECYCLED WITH MAKEUP AMMONIA TO THE CLEAVAGE REACTION. THE AQUEOUS 6-AMINO CAPROIC ACID IS THEN HEATED IN DILUTE AQUEOUS SOLUTION, 5% TO 25% W./V., TO CYCLIZE TO CAPROLACTAM. THE CAPROLACTAM IS THEN EXTRACTED WITH AN ORGANIC SOLVENT, SUCH AS TRICHLOROETHYLENE, AND THE UNCONVERTED AQUEOUS AMINO CAPROIC ACID RECYCLE TO THE CYCLIZATION STEP. SOLVENT IS THEN REMOVED AND THE CAPROLACTAM PURIFIED BY KNOWN MEANS. AN IMPORTANT PART OF THE PROCESS IS THAT THERE IS NO AMMONIUM SULFATE FORMED, WHICH IN EARLIER PROCESSES WAS AN UNDESIRABLE BY-PRODUCT. THE AMMONIA USED IN THE CLEAVAGE REACTION IS RECYCLED AND THERE IS NO LARGE LOSS OF RAW MATERIAL.

    Methods of making pyrrolidones
    87.
    发明公开
    Methods of making pyrrolidones 审中-公开
    Verfahren zur Herstellung von Pyrrolidonen

    公开(公告)号：EP2210875A1

    公开(公告)日：2010-07-28

    申请号：EP10004431.2

    申请日：2002-06-17

    Applicant: BATTELLE MEMORIAL INSTITUTE

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

    IPC: C07D201/02 ,  C07D201/08 ,  C07D207/267

    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。

    Production of lactams by ammoximation of cyclic ketones
    88.
    发明公开
    Production of lactams by ammoximation of cyclic ketones 有权
    Herstellung von Lactamen durch Ammoximierung zyklischer Ketone

    公开(公告)号：EP2098506A1

    公开(公告)日：2009-09-09

    申请号：EP08003291.5

    申请日：2008-02-22

    Applicant: Uhde Inventa-Fischer GmbH

    Inventor： Hölderich, Wolfgang F. ,  Anilkumar, Mettu ,  Schaller, Rainer

    IPC: C07D201/06

    CPC classification number: C07D201/06 ,  C07D201/02 ,  C07D211/76

    Abstract: Present invention describes the direct catalytic liquid phase synthesis of caprolactam from cyclohexanone, hydrogen peroxide and ammonia.
    The invention can be carried out by using mesoporous materials amongst the MMS family (mesoporous molecular sieves) as catalysts, such as Ti-MCM-41, A1-MCM-41 and Ti-SBA-15 materials at temperatures between 20 and 120 °C.

    Abstract translation: 本发明描述了来自环己酮，过氧化氢和氨的己内酰胺的直接催化液相合成。 本发明可以通过使用MMS系列（介孔分子筛）中的介孔材料作为催化剂，例如Ti-MCM-41，Al-MCM-41和Ti-SBA-15材料，在20〜120℃的温度下进行 。

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