申请人:MONSANTO COMPANY
公开号:EP0089331A1
公开(公告)日:1983-09-21
This invention relates to a process for the preparation of orthomethyl anilines from ortho-amino benzyl sulfoxides. An ortho-amino benzyl sulfoxide is converted to an ortho-amino benzyl halide by reaction with a nonoxidizing acid halide and is recovered from the reaction medium as an anilinium salt. After redissolving, the ortho-amino benzyl halide is hydrode- halogenated to form an ortho-methyl aniline.
本发明涉及一种从原氨基苄基亚砜制备原甲基苯胺的工艺。原氨基苄基亚砜通过与非氧化性酸卤化物反应转化成原氨基苄基卤化物,并以苯胺盐的形式从反应介质中回收。在重新溶解后,原氨基苄基卤化物被氢化卤化,生成原甲基苯胺。