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18 条记录 (耗时 0.011 秒)

    Solvated salts of dinitrophenylcyanamides, and a process for the preparation thereof
    5.
    发明授权
    Solvated salts of dinitrophenylcyanamides, and a process for the preparation thereof 失效
    二硝基苯基氰胺的溶剂化盐及其制备方法

    公开(公告)号：US4552970A

    公开(公告)日：1985-11-12

    申请号：US576168

    申请日：1984-02-01

    申请人： Otto Arndt ,  Theodor Papenfuhs ,  Wolfgang Tronich

    发明人： Otto Arndt ,  Theodor Papenfuhs ,  Wolfgang Tronich

    IPC分类号： C07C261/04 ,  C07C261/00 ,  C07C273/06 ,  C07C275/30 ,  C07C125/08 ,  C07C127/19

    CPC分类号： C07C275/30

    摘要： Compounds of the formula I ##STR1## in which X denotes hydrogen, fluorine, chlorine or bromine, Y and Z denote hydrogen, lower alkyl or lower alkoxy, M denotes sodium, potassium or one equivalent of calcium and L denotes a dipolar aprotic solvent, are obtained from compounds of the formula II ##STR2## in which X, Y and Z have the abovementioned meanings, and a metal cyanamide of the formula IIIM.sub.2 N--CNin which M has the abovementioned meaning, in a dipolar aprotic solvent, which after the reaction is substantially removed, whereupon a lower molecular weight aliphatic alcohol is added to the residue and the product precipitated is isolated. Nitrophenylureas of the formula IV ##STR3## in which X, Y and Z have the abovementioned meanings, are obtained from the compounds of the formula I by acid hydrolysis.

    摘要翻译： 其中X表示氢，氟，氯或溴的式I“IMA”的化合物，Y和Z表示氢，低级烷基或低级烷氧基，M表示钠，钾或1当量的钙，L表示偶极非质子溶剂， 由其中X，Y和Z具有上述含义的式II“IMAGE”的化合物和其中M具有上述含义的式IIIM2N-CN的金属氨基氰在偶极非质子传递溶剂中得到，后者为 基本上除去反应物，然后向残余物中加入较低分子量的脂族醇，分离析出的产物。 其中X，Y和Z具有上述含义的式IV“IMAGE”的硝基苯基脲通过酸水解得自式I化合物。