Method for increasing the purity of amphoteric compound compositions
    1.
    发明授权
    Method for increasing the purity of amphoteric compound compositions 失效
    提高两性化合物组合物纯度的方法

    公开(公告)号:US4453007A

    公开(公告)日:1984-06-05

    申请号:US324340

    申请日:1981-11-23

    申请人: David Taube

    发明人: David Taube

    IPC分类号: C07D473/10 C07C149/243

    CPC分类号: C07D473/10

    摘要: Provided is a method of increasing the purity of amphoteric compound compositions. The method is: (a) providing an amount of a crude amphoteric compound composition, (b) using a portion of the crude composition to prepare in solution a cationic salt of the amphoteric compound, (c) using another portion of the crude composition to prepare in solution an anionic salt of the amphoteric compound, (d) mixing together the solutions wherein a precipitate is formed, and (e) collecting the precipitate which is an amphoteric compound composition of higher purity than the crude composition.

    摘要翻译: 提供了提高两性化合物组合物的纯度的方法。 方法是:(a)提供一定量的粗两性化合物组合物,(b)使用粗制组合物的一部分在溶液中制备两性化合物的阳离子盐,(c)使用另一部分粗制组合物 在溶液中制备两性化合物的阴离子盐,(d)将形成沉淀物的溶液混合在一起,和(e)收集沉淀物,该沉淀物是比粗制组合物更高纯度的两性化合物组合物。