Zhang Qian-cheng
2009
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Journal
Inner Mongolia Petrochemical Industry
Abstract
Synthesis process of 2-chloro-6-methylaniline was investigated and A new method for the preparation of 2-chloro-6-methylaniline is put forward in this paper,which use diphenylurea to protect ammonia and use sodium chlorate to instead of hydrogen peroxide as oxidant in chlorination.2-methylaniline as the raw material,and urea are combined to produce N,N'-Bis(2-methylphenyl)urea,then treated with chlorosulphonic acid and ammonia yielding the N,N'-Bis(2-methylphenyl)urea-4,4'-Bisbenzenesulfonic amide,which was in turn hydrolyzed,chlorinated and hydrolyzed to the title compound.