Preparation of alkanesulfonamides with low residual ammonium impurities
    1.
    发明公开
    Preparation of alkanesulfonamides with low residual ammonium impurities 失效
    Herstellung von Alkansulfonamiden mit niedrigen Ammonium-Restverunreinigungen

    公开(公告)号:EP0761646A1

    公开(公告)日:1997-03-12

    申请号:EP96112675.2

    申请日:1996-08-06

    CPC classification number: C07C303/44 C07C311/03

    Abstract: A method is disclosed for the preparation of alkanesulfonamide containing low amounts of ammonium or alkylammonium-salt impurities wherein alkanesulfonamide is treated with a base to convert ammonium or alkylammonium-salt impurities to their corresponding base salts and to liberate neutral amine or ammonia.

    Abstract translation: 一种制备方法 的烷烃磺酰胺 减少了 的铵盐杂质包括在无水条件下用足够的碱处理不纯的烷基磺酰胺,将所有的铵或烷基铵盐转化为相应的碱式盐,并从反应中释放出中性胺或氨。 碱选自碱金属和碱土金属碱,季铵和鏻碱,以及合成聚合物树脂。 基本gps。

    Pressurized production of alkanesulfonyl chloride and alkanesulfonic acid
    3.
    发明公开
    Pressurized production of alkanesulfonyl chloride and alkanesulfonic acid 失效
    Herstellung von Alkansulfonylchloriden undAlkansulfonsäurenunter Druck。

    公开(公告)号:EP0675107A1

    公开(公告)日:1995-10-04

    申请号:EP95104523.6

    申请日:1995-03-28

    CPC classification number: C07C303/16 C07C309/80 C07C309/04

    Abstract: A process for coproducing alkanesulfonyl chloride (ASC) or alkanesulfonic acid (ASA) and hydrochloric acid of reduced contamination with ASC, wherein a compound of the formula RSX, where X is hydrogen or -SR¹ and R and R¹ are alkyl radicals having from 1 to 20 carbon atoms, is reacted with chlorine in the presence of aqueous hydrochloride at an elevated pressure.

    Abstract translation: 用于共同生产具有降低的ASC污染的烷基磺酰氯(ASC)或烷烃磺酸(ASA)和盐酸的方法,其中式RSX的化合物,其中X是氢或-SR 1,R和R 1是 具有1至20个碳原子的烷基在氯化氢盐水溶液的存在下,在升高的压力下与氯反应。

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