Process for preparing lower lactams from allylic amine substrates
    12.
    发明授权
    Process for preparing lower lactams from allylic amine substrates 失效
    从烯丙基胺底物制备低级内酰胺的方法

    公开(公告)号:US4111952A

    公开(公告)日:1978-09-05

    申请号:US745018

    申请日:1976-11-26

    Inventor: John F. Knifton

    CPC classification number: C07D201/02

    Abstract: This invention concerns processes for preparing cyclic, 5-membered ring, lactams through the carbonylation of allylic substrates in the presence of rhodium catalysts.

    Abstract translation: 本发明涉及在铑催化剂存在下通过烯丙基底物的羰基化制备环状5元环,内酰胺的方法。

    Process for the preparation of epsilon-caprolactam
    18.
    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

    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.

    Catalytic deamination for caprolactam production
    20.
    发明授权
    Catalytic deamination for caprolactam production 有权
    己内酰胺生产催化脱氨

    公开(公告)号:US08283466B2

    公开(公告)日:2012-10-09

    申请号:US12527848

    申请日:2008-02-20

    Applicant: John W. Frost

    Inventor: John W. Frost

    CPC classification number: C07D201/00 C07D201/02 C07D201/08 Y02P20/52

    Abstract: Catalytic processes for preparing caprolactam, pipecolinic acid, and their derivatives, from lysine or alpha-amino-epsilon-caprolactam starting materials, and products produced thereby. A process for preparing caprolactam or a derivative thereof, the process comprising contacting a reactant comprising lysine or alpha aminocaprolactam with a catalyst and a gas comprising hydrogen gas, in the presence of a solvent. The catalyst may be provided on a support material, such as a transition metal.

    Abstract translation: 从赖氨酸或α-氨基-ε-己内酰胺起始原料制备己内酰胺,哌可啶酸及其衍生物的催化方法,以及由此产生的产物。 一种制备己内酰胺或其衍生物的方法,该方法包括在溶剂存在下使包含赖氨酸或α-氨基己内酰胺的反应物与催化剂和包含氢气的气体接触。 催化剂可以设置在载体材料如过渡金属上。

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