Novel nitrating process of 3-nitro-4-chlorobenzotrifluoride

The invention discloses a novel nitrating process of 3-nitro-4-chlorobenzotrifluoride. A used catalyst is a biodegradable ionic liquid with a quaternary ammonium cation structure; raw materials are p-chlorobenzotrifluoride and ammonium nitrate; nitration reaction is carried out under the action of the catalyst, so that the 3-nitro-4-chlorobenzotrifluoride is obtained. Compared with the prior art,the novel nitrating process of the 3-nitro-4-chlortrifluorotoluene, provided by the invention, has the advantages that (1) ammonium nitrate is adopted to replace nitric acid, so that the 3-nitro-4-chlorobenzotrifluoride is wide in raw material source, convenient to use, and less in equipment corrosion; (2) the ion liquid can be biodegraded, so that the 3-nitro-4-chlorobenzotrifluoride is environmentally friendly; (3) the ion liquid replaces concentrated sulfuric acid, so that the novel nitrating process of the 3-nitro-4-chlortrifluorotoluene is an environment-friendly chemical process, and hasa favorable industrial ap