[CH3:1][O:2][C:3]1[C:8]([N+:9]([O-])=O)=[CH:7][C:6]([C:12]([F:15])([F:14])[F:13])=[CH:5][C:4]=1[N+:16]([O-])=O.CO.C([O-])=O.[NH4+]>CCOC(C)=O.[Pd]>[CH3:1][O:2][C:3]1[C:8]([NH2:9])=[CH:7][C:6]([C:12]([F:13])([F:15])[F:14])=[CH:5][C:4]=1[NH2:16]2-Methoxy-1,3-dinitro-5-trifluoromethylbenzene (3.0 g, 11.3 mmol) was dissolved in 100 mL 50:50 EtOAc: MeOH. Ammonium formate (7.06 g, 112 inmol) was added followed by palladium-on-carbon catalyst (1.0 g). The reaction was heated to a gentle reflux for 45 min, then allowed to cool, and filtered through a plug of diatomaceous earth. The calalyst was washed with EtOAc repeatedly, and the filtrate was in vacuo. The residue was taken up in 500 ml 50% EtOAc in hexanes and filtered through a short plug of silica gel. The filtrate was concentrated in vacuo, providing 2.15 g (10.4 mmol, 95%) of 2-methoxy-5-trifluoromethyl-benzene-1,3-diamine as a brown oil.
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