156639-47-3Relevant academic research and scientific papers
PROCESS FOR SYNTHESIZING POLYHALOGENATED PERHALOALKYLANILINE COMPOUNDS
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Page/Page column 15, (2011/06/16)
A process for preparing polyhalogenated perfluoroalkylanilines particularly useful as reaction intermediates for preparing agrochemicals is disclosed The process comprises reacting anhydrous monomethylamine with 3,4-dichlorobenzot?fluo?de at a temperature of 140-200 °C, halogenating the resultant intermediate with halogenating agents like chloride, sulfuryl chloride and PC15, and then dealkylating the deactivated aniline with catalytic quantity of pyridine salt and dry HC1 gas at 180-190 °C or with anhydrous hydrobromic acid to get 2,6-dichloro-4-trifluoromethylaniline.
