Arenediazonium trifluoromethanesulfonate was synthesized from 3-chloro-2-methylaniline,tert-butyl nitrite(t-BuONO)via diazotization reaction in trifluoromethanesulfonic acid(TfOH)aqueous solution.And then,3-chloro-2-methylphenyl methyl sulfide was obtained from arenediazonium trifluoromethanesulfonate and sodium thiomethoxide via substitution reaction.Based on the high stability,safety and reactivity of arenediazonium trifluoromethanesulfonate,the yield and purity of the product were over 98％under the optimized process conditions.The synthesis process had the advantages of less wastes,simple operation,and safety.
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