反应详情

2-[(2-Methoxyethyl)oxy]-6-methyl-3-nitro-4-[(2,2,2-trifluoroethyl)oxy]pyridine (1.65 g, 5.32 mmol) was dissolved in a mixed solvent of dioxane (30 mL)-methanol (30 mL). Raney nickel (ethanol suspension, 3 mL) was added to the solution. In a hydrogen atmosphere, the mixture was stirred at room temperature for 26 hours. The reaction mixture was subjected to filtration, and the filtrate was concentrated under reduced pressure, to thereby yield 3-amino-2-[(2-methoxyethyl)oxy]-6-methyl-4-[(2,2,2-trifluoroethyl)oxy]pyridine as a pale yellow oil (1.49 g, 99%).

1. filtrationThe reaction mixture was subjected to filtration
2. concentrationthe filtrate was concentrated under reduced pressure