反应详情

温度

90 °C

To a stirred suspension of 5-iodo-N-(3-methoxy-4-((6-methylpyridin-3-yl)methoxy)benzyl)-3-nitropyridin-2-amine (13.57 g, 26.80 mmol) in acetic acid (100 mL) was added iron powder (8.10 g, 145.0 mmol). The bright yellow suspension was gradually warmed to 90° C. After 30 min of heating, the dark brown reaction mixture was allowed to cool to room temperature and was diluted with ethyl acetate (400 mL). The mixture was filtered through Celite with the aid of additional ethyl acetate (100 mL). The filtrate was then washed with water (2×150 mL) and 1N sodium hydroxide solution (2×200 mL). The organic phase was dried over magnesium sulfate, filtered, and concentrated to provide 6.97 g (55%) of 5-iodo-N2-(3-methoxy-4-((6-methylpyridin-3-yl)methoxy)benzyl)pyridine-2,3-diamine as a brown solid.

1. temperatureAfter 30 min of heating
2. temperatureto cool to room temperature
3. filtrationThe mixture was filtered through Celite with the aid of additional ethyl acetate (100 mL)
4. washThe filtrate was then washed with water (2×150 mL) and 1N sodium hydroxide solution (2×200 mL)
5. dry with materialThe organic phase was dried over magnesium sulfate
6. filtrationfiltered
7. concentrationconcentrated