反应详情

To a stirred solution of 4-iodo-N-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-2-nitroaniline (7.10 g, 13.62 mmol) in tetrahydrofuran (100 mL), methanol (50 mL), and water (10 mL) was added ammonium chloride (5.83 g, 109.0 mmol) and iron (II) sulfate heptahydrate (13.25 g, 47.67 mmol). The bright orange suspension was treated with zinc (3.12 g, 47.67 mmol). The mixture was gradually warmed to reflux. After 20 min, the color of the reaction mixture had turned from orange to olie-green. At this point the reaction mixture was allowed to cool to room temperature. The mixture was filtered through Celite, and the filtercake was washed with chloroform. The filtrate was then washed with 5N ammonium hydroxide solution (75 mL). The organic phase was dried over magnesium sulfate, filtered, and concentrated to provide 6.49 g of 4-iodo-N1-(3-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)benzene-1,2-diamine as a tan solid.

1. temperatureThe mixture was gradually warmed to reflux
2. filtrationThe mixture was filtered through Celite
3. washthe filtercake was washed with chloroform
4. washThe filtrate was then washed with 5N ammonium hydroxide solution (75 mL)
5. dry with materialThe organic phase was dried over magnesium sulfate
6. filtrationfiltered
7. concentrationconcentrated