Process for the preparation of 2-benzimidazolecarbamic acid esters
    10.
    发明公开
    Process for the preparation of 2-benzimidazolecarbamic acid esters 失效
    Verfahren zur Herstellung von 2-Benzimidazolcarbaminsäureestern。

    公开(公告)号:EP0003951A1

    公开(公告)日:1979-09-19

    申请号:EP78101719.9

    申请日:1978-12-16

    申请人: ETHYL CORPORATION

    IPC分类号: C07D235/32

    CPC分类号: C07D235/32

    摘要: 2-Benzimidazole carbamate compounds known as useful for combating parasitic infestures are made by an improved sequential process including a) thiocyanating o-nitroaniline, b) alkylating the thiocyanate this prepared, c) reducing the nitro group in the product from b), and d) condensing an alkylthio-o-phenylenediamine with an alkyl cyano carbamate (or alkali or alkaline earth metal salt thereof), to provide the desired products.

    摘要翻译: 已知可用于防治寄生虫感染的2-苯并咪唑氨基甲酸酯化合物通过改进的顺序方法制备,包括a)硫氰酸化邻硝基苯胺,b)烷基化所制备的硫氰酸酯,c)将b)中的产物中的硝基还原,d )将烷基硫代邻苯二胺与氰基氨基甲酸烷基酯(或其碱金属或碱土金属盐)缩合,以提供所需的产物。