Process for the direct acetylation of aromatic amines
    1.
    发明授权
    Process for the direct acetylation of aromatic amines 失效
    芳香胺直接乙酰化的方法

    公开(公告)号:US4537991A

    公开(公告)日:1985-08-27

    申请号:US556680

    申请日:1983-11-30

    CPC分类号: C07C231/02 C07C233/00

    摘要: The present disclosure is concerned with a process of reacting a solid aromatic amine with liquid acetic anhydride to yield a solid amide. The amine is in a flowable particulate form and it is subject to sufficient agitation during the reaction to prevent agglomeration. The amide is recovered as a flowable particulate by evaporation of the acetic acid by product and any excess acetic anhydride.

    摘要翻译: 本公开涉及使固体芳族胺与液体乙酸酐反应以产生固体酰胺的方法。 胺是可流动的颗粒形式,并且在反应期间经受足够的搅动以防止附聚。 通过产物和任何过量的乙酸酐蒸发乙酸,将酰胺作为可流动颗粒回收。