The preparation method and application of p-fluorotoluene were introduced.The preparation of p-fluorotoluene by p-toluidine diazotization fluorination(Schiemann reaction)is a method widely used in industrializa-tion at present,but there are many problems such as many side reactions,high risk coefficient of raw materials and harsh reaction conditions.The Schiemann reaction was improved by anhydrous hydrogen fluoride.The improved process route is simple and the yield is high.The application of p-fluorotoluene in the field of pesticide pharma-ceutical intermediates was introduced.In the next few years,the market scale of domestic p-fluorotoluene industry will continue to grow,which should be focused on.
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