Method for producing oxime
    164.
    发明授权
    Method for producing oxime 有权
    生产肟的方法

    公开(公告)号:US09533944B2

    公开(公告)日:2017-01-03

    申请号:US14655514

    申请日:2013-12-12

    CPC classification number: C07C249/04 C07C2601/14 C07D201/04 C07C251/44

    Abstract: Provided is a method for producing an oxime compound with satisfactory selectivity. Provide is a method for producing an oxime represented by the following formula (II): wherein R1 and R2 are respectively the same as defined below, the method including oxidizing an amine represented by the following formula (I): wherein R1 and R2 each independently represents a hydrogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group (provided that R1 and R2 are not simultaneously hydrogen atoms), or R1 and R2, together with the carbon atom to which R1 and R2 are attached, form an optionally substituted alicyclic hydrocarbon group having 3 to 12 carbon atoms [hereinafter sometimes referred to as the amine compound (I)], with oxygen in the presence of a layered silicate.

    Abstract translation: 提供一种具有令人满意的选择性的肟化合物的制造方法。 提供一种由下述式(II)表示的肟的制造方法,其中R 1和R 2分别与下述定义相同,该方法包括使由下式(I)表示的胺氧化:其中R 1和 R 2各自独立地表示氢原子,任选取代的烃基或任选取代的杂环基(条件是R 1和R 2不同时为氢原子)或R 1和R 2与碳原子一起 在层状硅酸盐存在下,与氧一起形成任选取代的碳原子数为3〜12的脂环族烃基(以下有时称为胺化合物(I))。

    METHOD FOR PREPARING LACTAMES, COMPRISING A PHOTONITROSATION STEP, FOLLOWED BY A BECKMANN TRANSPOSITION STEP
    166.
    发明申请
    METHOD FOR PREPARING LACTAMES, COMPRISING A PHOTONITROSATION STEP, FOLLOWED BY A BECKMANN TRANSPOSITION STEP 有权
    制备LACTAMES的方法,包括光催化步骤,由BECKMANN传输步骤

    公开(公告)号:US20140246303A1

    公开(公告)日:2014-09-04

    申请号:US14252610

    申请日:2014-04-14

    Applicant: ARKEMA FRANCE

    Inventor: Thierry AUBERT

    Abstract: The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloalkane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of LEDs emitting a monochromatic light. The method according to the invention can also include a step comprising Beckmann transposition/dechlorination of the oxime hydrochloride generated during said phonitrosation, preferably carried out in a glass microreactor.

    Abstract translation: 本发明涉及一种制备内酰胺的方法,根据该方法,使用亚硝酰氯(NOCI)进行环烷烃的光子离子化。 根据本发明,所述光子离子化是通过发射单色光的LED进行的。 根据本发明的方法还可以包括一个步骤,该步骤包括贝克曼转移/脱氯在所述发声过程中产生的肟盐酸盐,优选在玻璃微反应器中进行。

    Process for regenerating catalyst for producing e-caprolactam and process for producing e-caprolactam
    170.
    发明授权
    Process for regenerating catalyst for producing e-caprolactam and process for producing e-caprolactam 失效
    用于生产ε-己内酰胺的催化剂再生方法和用于生产ε-己内酰胺的方法

    公开(公告)号:US07687621B2

    公开(公告)日:2010-03-30

    申请号:US11822141

    申请日:2007-07-02

    Abstract: The present invention provides a process for regenerating a catalyst for producing e-caprolactam comprising the steps of adsorbing a silicon compound on a zeolite catalyst that had been used for a Beckmann rearrangement reaction of cyclohexanone oxime and contacting the catalyst with an aqueous solution containing a compound selected from a quaternary ammonium compound, lower alkylamines and ammonia. The present invention also provides a process for producing e-caprolactam comprising subjecting cyclohexanone oxime to the Beckmann rearrangement reaction in the presence of the catalyst thus regenerated.

    Abstract translation: 本发明提供了一种用于再生生产ε-己内酰胺的催化剂的方法,包括以下步骤:将硅化合物吸附在已经用于环己酮肟的贝克曼重排反应的沸石催化剂上,并使催化剂与含有化合物的水溶液接触 选自季铵化合物,低级烷基胺和氨。 本发明还提供一种生产ε-己内酰胺的方法,其包括在由此再生的催化剂存在下使环己酮肟进行贝克曼重排反应。

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