PROCESS FOR PRODUCING -g(a)-ALKOXYIMINOPHENYLACETONITRILE DERIVATIVE.
    9.
    发明公开
    PROCESS FOR PRODUCING -g(a)-ALKOXYIMINOPHENYLACETONITRILE DERIVATIVE. 失效
    VERFAHREN ZUR HERSTELLUNG VON ALPHA-ALKOXY-IMINOPHENYLACETONITRIL。

    公开(公告)号:EP0658543A4

    公开(公告)日:1996-02-07

    申请号:EP94919840

    申请日:1994-07-01

    摘要: A process for producing an alpha -alkoxyiminophenylacetonitrile represented by general formula [III], (wherein R , R , R and Y are each as defined in the specification) by reacting an alkali metal salt of an alpha -hydroxyiminophenylacetonitrile, represented by general formula [I], (wherein R , R , Y and A are each as defined in the specification) with a dialkyl sulfate represented by the general formula [II]: (R )2SO4, (wherein R is as defined in the specification) in the presence of a phase transfer catalyst in a solvent mixture composed of a hydrocarbon solvent and water. It is possible by using the above catalyst and solvent mixture to inhibit the formation of a nitrone derivative as a by-product to thereby produce a highly pure alkoxyimino compound in a high yield.

    摘要翻译: 由通式[Ⅲ]表示的α-烷氧基亚氨基苯基乙腈的制备方法(其中R 1,R 2,R 3和Y各自如说明书中所定义)通过使 (R 1,R 2,Y和A各自如本说明书中所定义)与由通式[II]表示的硫酸二烷基酯反应,得到通式[I]所示的α-羟基亚氨基苯基乙腈:(R 3)2 SO 4(其中R 3如说明书中所定义)在相转移催化剂存在下在由烃溶剂和水组成的溶剂混合物中反应。 通过使用上述催化剂和溶剂混合物抑制作为副产物的硝酮衍生物的形成,从而以高产率生产高纯度的烷氧基亚氨基化合物是可能的。