Method for producing bis [.beta.(N,N-dimethylamino)ethyl]ether
    8.
    发明授权
    Method for producing bis [.beta.(N,N-dimethylamino)ethyl]ether 失效
    双[(N,N-二甲基氨基)乙基]醚的制备方法

    公开(公告)号:US4625064A

    公开(公告)日:1986-11-25

    申请号:US597312

    申请日:1984-04-06

    摘要: An improved process for preparing a bis [.beta.-(N,N-dimethylamino)ethyl]ether by reacting a bismethohalide of bis [.beta.-(N,N-dimethylamino)ethyl]ether represented by the following general formula: ##STR1## (wherein X denotes a halogen atom), with an aliphatic amine having a boiling point of not lower than 220.degree. C. at atmospheric pressure and having a primary amino group in the molecule thereof. The process comprises the following two steps (a) and (b): (a) a step of distilling out water at a temperature of not more than 130.degree. C. under reduced pressure from a mixture of said bismethohalide aqueous solution and said aliphatic amine to provide a concentration of said bismethohalide to water of not less than 85% by weight, and (b) a step of reacting said bismethohalide and amine in a solid-liquid phase at a temperature of not lower than 140.degree. C.

    摘要翻译: 通过使由以下通式表示的双[β-(N,N-二甲基氨基)乙基]醚的双氯代双酚反应制备双[β-(N,N-二甲基氨基)乙基]醚的改进方法: 其中X表示卤素原子),其中在大气压下沸点不低于220℃并在其分子中具有伯氨基的脂族胺。 该方法包括以下两个步骤(a)和(b):(a)在减压下从所述二氯二苯醚水溶液和所述脂族胺的混合物中蒸出不超过130℃的温度的步骤 以提供不低于85重量%的所述二氯酮对水的浓度,和(b)在固液相中在不低于140℃的温度下使所述双氯苯胺和胺反应的步骤。

    Method for preparing tetrabutylammonium bromide
    9.
    发明授权
    Method for preparing tetrabutylammonium bromide 失效
    四丁基溴化铵的制备方法

    公开(公告)号:US3965178A

    公开(公告)日:1976-06-22

    申请号:US549218

    申请日:1975-02-12

    IPC分类号: C07C209/12 C07C87/30

    CPC分类号: C07C209/12

    摘要: Tetrabutylammonium bromide is prepared buy mixing n-butylbromide with tributylamine in acetonitrile, in an inert atmosphere, under reflux conditions for a sufficient period of time to form a solution containing tetrabutylammonium bromide, cooling the resulting solution; mixing the solution with water, thus forming a mixture; and recovering tetrabutylammonium bromide in high yield from the mixture.

    摘要翻译: 制备四丁基溴化铵,在惰性气氛下,在回流条件下,在乙腈中,与正丁基溴与三丁胺混合足够的时间以形成含有四丁基溴化铵的溶液,冷却所得溶液; 将溶液与水混合,从而形成混合物; 并从混合物中以高收率回收四丁基溴化铵。