反应详情

3,6-Dichloro-4-methanesulfonylpyridazine(W4.126; 660 mg, 2.9 mmol) was dissolved in 1,4-dioxane (5 ml) and hydrazine hydrate (295 μl, 5.8 mmol) was added. The mixture was stirred at RT for 4 h, then concentrated, and the residue was purified by flash chromatography (dichloromethane:ethyl acetate). Yield: 200 mg

1. concentrationconcentrated
2. customthe residue was purified by flash chromatography (dichloromethane:ethyl acetate)