Dinitration of nitrobenzotrifluoride

Details Dinitration of nitrobenzotrifluoride Dinitration of nitrobenzotrifluoride

C - Chemistry, Metallurgy

07

C

260/610.5

C07C 205/11 (2006.01) C07C 205/12 (2006.01) C07C 205/58 (2006.01)

Patent

CA 1066309

DINITRATION OF NITROBENZOTRIFLUORIDE ABSTRACT OF THE DISCLOSURE This invention relates to an improvement in a process for dinitrating 3-nitrobenzotrifluoride and 4-halo-3-nitro- benzotrifluoride compounds wherein the mononitrobenzotri- fluoride composition is contacted with a mixture comprising sulfuric and nitric acid. The improvement constituting the basis of this invention comprises carrying out the dinitration with the sulfuric acid being present in at least a catalytic proportion but not exceeding about 65 mole percent in said mixture.

251757

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