反应详情

温度

80 °C

To a solution of 4-[(1-amino-5-ethyl-1H-pyrrol-2-yl)carbonyl]benzonitrile (100 mg) in toluene (1 mL) were added 1-(4-methoxyphenyl)acetone (103 mg) and p-toluene-sulfonic acid monohydrate (16 mg) at ambient temperature. The reaction mixture was heated at 80° C. for 3 hours. The mixture was evaporated in vacuo. The residue was purified by flash silica gel column chromatography eluting with hexane-ethyl acetate=20-1 and 15-1 to give 4-[7-ethyl-3-(4-methoxyphenyl)-2-methylpyrrolo[1,2-b]pyridazin-4-yl]benzonitrile (31 mg, 20.2%) as an yellow solid.

1. customThe mixture was evaporated in vacuo
2. customThe residue was purified by flash silica gel column chromatography
3. washeluting with hexane-ethyl acetate=20-1 and 15-1