Preparation of substantially salt-free aqueous solutions of
bisaminoxyalkanes
    15.
    发明授权
    Preparation of substantially salt-free aqueous solutions of bisaminoxyalkanes 失效
    制备基本上无盐的双氨基链烷烃水溶液

    公开(公告)号:US5597466A

    公开(公告)日:1997-01-28

    申请号:US279888

    申请日:1994-07-26

    CPC classification number: C07C239/20 C08K5/32

    Abstract: Salt-free aqueous solutions of bisaminoxyalkanes (I) are prepared by a process in whicha) a dihaloalkane (II) is converted with a ketoxime (III) in an aqueous solution of a strong mineral base into the alkylene bisoxime ether (IV),b) the alkylene bisoxime ether (IV) is cleaved with a strong mineral acid and water to give the ketone and the salt of the mineral acid with the bisaminoxyalkane (I), and the ketone is separated off in a conventional manner,c) an alkali metal hydroxide is added to the remaining aqueous solution to liberate the bisaminoxyalkane (I) andd) the ionic components are removed from the resulting aqueous solution by electrodialysis.

    Abstract translation: 通过以下方法制备双氨基链烷烃(I)的无盐水溶液:其中a)将二卤代烷(II)在强矿物碱的水溶液中用酮肟(III)转化成亚烷基双肟醚(IV), b)亚烷基双肟醚(Ⅳ)用强无机酸和水分解,得到酮和无机酸的盐与双氨基链烷烃(I),并以常规方式分离酮,c) 将碱金属氢氧化物加入到剩余的水溶液中以释放出双氨基链烷烃(I),和d)通过电渗析从所得水溶液中除去离子组分。

Patent Agency Ranking