[N+]([C:4]1[C:5]([N+]([O-])=O)=[C:6]([CH3:10])[CH:7]=[CH:8][CH:9]=1)([O-])=O.[N+:14]([O-:17])(O)=[O:15]>C1(C)C=CC=CC=1>[N+:14]([C:9]1[CH:8]=[CH:7][C:6]([CH3:10])=[CH:5][CH:4]=1)([O-:17])=[O:15]This invention relates to a continuous process for preparing dinitrotoluene by reacting toluene with dilute nitric acid to produce mononitrotoluene and then reacting the mononitrotoluene with concentrated nitric acid to produce dinitrotoluene.
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