申请人:American Cyanamid Company
公开号:US04395577A1
公开(公告)日:1983-07-26
A method for the preparation of 3-chloromethyl derivatives of 4-alkylnitrobenzenes from the corresponding amidomethyl derivatives with phosphorus oxychloride or with phosphorous oxychloride and inert solvents. This process also relates to 3-chloromethyl-4-alkylnitrobenzenes which are useful intermediates for the preparation of certain substituted 2,6-dinitroaniline pre-emergence herbicides.
一种制备3-氯甲基衍生物的方法,该衍生物是通过将相应的酰胺甲基衍生物与氧化氯磷或氧化氯磷和惰性溶剂反应制得的4-烷基硝基苯。该过程还涉及3-氯甲基-4-烷基硝基苯,这是制备某些取代的2,6-二硝基苯胺预出苗除草剂的有用中间体。