Abstract
Sulfonation of m-aminobenzotrifluoride was investigated. No sulfonation was observed by usual sulfonation in 90% sulfuric acid and it was accompanied with hydrolysis of trifluoromethyl group.Sulfonation was possible by use of 98% sulfuric acid but it was accompanied with hydrolysis of trifluorometyl group. Sulfonation alone was possible by use of the baking process without accompanying the hydrolysis of trifluoromethyl group.Confirmation of the product was made by paper chromatography and it was found to be 2-amino-4-trifluoromethylbenzenesulfonic acid. Discussions are made on the mechanism of sulfonation by the baking process.
