反应详情

温度

90 °C

To a stirred suspension of N-(3-ethoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-5-iodo-3-nitropyridin-2-amine (4.34 g, 8.09 mmol) in acetic acid (25 mL) was added iron powder (2.26 g, 40.46 mmol). The reaction mixture was heated to 90° C. After 15 min, the reaction mixture became a gray-brown suspension. The mixture was allowed to cool to room temperature and was diluted with ethyl acetate (200 mL). The mixture was filtered through Celite with the aid of additional ethyl acetate (50 mL). The filtrate was washed with water (2×50 mL) and then with 1N sodium hydroxide solution (3×50 mL). The organic phase was dried over magnesium sulfate, filtered, and concentrated to provide 3.99 g (97%) of N2-(3-ethoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-5-iodopyridine-2,3-diamine as a tan solid.

1. temperatureto cool to room temperature
2. filtrationThe mixture was filtered through Celite with the aid of additional ethyl acetate (50 mL)
3. washThe filtrate was washed with water (2×50 mL)
4. dry with materialThe organic phase was dried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated