1813-33-8Relevant articles and documents
Synthesis method of p-trifluoromethyl benzonitrile compound
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Paragraph 0052; 0053, (2019/10/02)
The invention relates to a preparation method of a p-trifluoromethyl benzonitrile compound. The structural formula of the p-trifluoromethyl benzonitrile compound is shown as formula (I), wherein X isa group selected from nitro or halogen. The p-trifluoromethyl benzonitrile compound is prepared by reacting a compound shown as formula (II) with cuprous cyanide under the action of sodium bromide or/and potassium bromide. The method provided by the invention adopts a low-cost catalyst, has a reaction conversion rate and selectivity up to 95% or more, also makes inorganic salts and tar easy to separate in the subsequent treatment process, thereby simplifying the post-treatment process and reducing the discharge of three wastes, and the method is suitable for large-scale industrial production.