Water → N1-(2-fluoro-5-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-4-iodobenzene-1,2-diamine

Participants

Reaction Steps

To a stirred solution of N-(2-fluoro-5-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-4-iodo-2-nitroaniline (0.38 g, 0.70 mmol) in tetrahydrofuran (10 mL), methanol (5 mL), and water (1 mL) was added ammonium chloride (0.30 g, 5.64 mmol) and iron (II) sulfate heptahydrate (0.69 g, 2.47 mmol). The bright orange suspension was treated with zinc (0.16 g, 2.47 mmol). The mixture was gradually warmed to reflux. After 3.5 h, the color of the reaction mixture had turned from orange to olive-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 (250 mL). The filtrate was washed with 5N ammonium hydroxide solution (75 mL). The organic phase was dried over magnesium sulfate, filtered, and concentrated to afford 0.36 g (100%) of N1-(2-fluoro-5-methoxy-4-((6-methoxypyridin-3-yl)methoxy)benzyl)-4-iodobenzene-1,2-diamine as a tan solid.

Provenance & Evidence