反应详情

温度

120 °C

A mixture of 2-cyclopropyl-N-(6-iodoimidazo[1,2-b]pyridazin-2-yl)acetamide (501 mg, 1.46 mmol), 3-aminophenol (479 mg, 4.39 mmol), potassium carbonate (807 mg, 5.84 mmol) and N,N-dimethylformamide (5 mL) was stirred at 120° C. for 12 hr. Tetrahydrofuran/ethyl acetate and saturated brine were added to the reaction mixture, and insoluble material was filtered off. The filtrate was extracted with ethyl acetate, dried over anhydrous magnesium sulfate, and filtrated. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate=20/80→0/100) to give the title compound (156 mg, 33%) as a pale-yellow powder.

1. filtrationwas filtered off
2. extractionThe filtrate was extracted with ethyl acetate
3. dry with materialdried over anhydrous magnesium sulfate
4. filtrationfiltrated
5. customThe solvent was evaporated under reduced pressure
6. customthe residue was purified by silica gel column chromatography (hexane/ethyl acetate=20/80→0/100)