| 摘要 |
<p>A method for preparing polyhalogenated p-trifluoromethylanilines, especially 2,6-dihalo-p-trifluoromethylaniline is provided The method comprises reacting ammonia with 3,4-dihalobenzotrifluoride at a temperature ranging from 200 °C to 300 °C in the presence of an alkali halide, and then halogenating the resultant intermediates with halogenating agents like sulfuryl chloride, chlorine and PC15 to get 2,6-dihalo-p-trifluoromethylaniline.</p> |
