2-Pyridinamine, N-methyl-5-nitro-N-(2,2,2-trifluoroethyl)- → 2,5-Pyridinediamine, N2-methyl-N2-(2,2,2-trifluoroethyl)-

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Reaction Steps

A solution of methyl-(5-nitro-pyridin-2-yl)-(2,2,2-trifluoro-ethyl)-amine (80 mg, 0.34 mmol) in ethanol (10 mL) in the presence of 10% palladium on carbon (10 mg) was shaken under hydrogen with a pressure of 50 psi at room temperature for 2 hours. After the reaction was complete, the reaction mixture was filtered through a plug of celite and the filtration pad was washed with ethanol. The organic layers were combined and concentrated to give N2-methyl-N2-(2,2,2-trifluoro-ethyl)-pyridine-2,5-diamine (70 mg, crude) as a brown oil, which was directly used in the next step without further purification. LCMS calcd for C8H10F3N3 (m/e) 205, obsd 206 (M+H).

Provenance & Evidence