3-Methoxy-2-nitropyridine → 2-Amino-3-methoxypyridine

Beteiligte Stoffe

Reaktionsschritte

To a solution of 2-nitro-3-methoxypyridine (32 g, 208 mmol) in EtOAc (150 mL) and MeOH (35 mL) under a nitrogen atmosphere was added 10% palladium on carbon (1.5 g, 1.4 mmol). This mixture was purged with H2 three times and the mixture was stirred for 3 h under a hydrogen atmosphere. The reaction mixture was purged with N2 three times, filtered through Celite, and the filter cake was washed with EtOAc (2×35 ml). The combined filtrate were concentrated and dried over high vacuum to afford 25.8 grams (100%) of 2-amino-3-methoxypyridine: LCMS (m/z): 125.0 (MH+); 1H NMR (300 MHz, CDCl3): 7.66 (m, 1H), 6.90 (m, 1H), 6.61 (m, 2H), 4.64 (s, br, 2H), 3.83 (s, 3H).

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