反应详情

温度

0 °C

To a solution of N-[4-(benzyloxy)phenyl]-5-methyl-3-nitropyridin-2-amine (1.33 g) in acetic acid (10 mL) and THF (10 mL) was added zinc (2.59 g) at 0° C., and the mixture was stirred at 0° C. for 2 h. After stirring at room temperature overnight, the mixture was filtered and the filtrate was concentrated in vacuo. The residue was diluted with AcOEt, washed with sat. NaHCO3, dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography (NH silica gel, eluted with 5%-50% AcOEt in hexane) to give N2-[4-(benzyloxy)phenyl]-5-methylpyridine-2,3-diamine (0.63 g) as a blue solid.

1. stirringAfter stirring at room temperature overnight
2. filtrationthe mixture was filtered
3. concentrationthe filtrate was concentrated in vacuo
4. additionThe residue was diluted with AcOEt
5. washwashed with sat. NaHCO3
6. dry with materialdried over Na2SO4
7. filtrationfiltered
8. concentrationconcentrated in vacuo
9. customThe residue was purified by column chromatography (NH silica gel, eluted with 5%-50% AcOEt in hexane)