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.
一种从相应的酰胺甲基衍生物通过磷酰氯或磷酰氯和惰性溶剂制备4-烷基-3-氯甲基硝基苯衍生物的方法。这个过程还涉及到3-氯甲基-4-烷基硝基苯,它们是有用的中间体,用于制备某些取代的2,6-二硝基苯胺类芽前除草剂。