反应详情

A mixture of 4-chloro-1-mesityl-1,6-dihydro-7H-pyrrolo[2,3-d]pyridazin-7-one (0.43 g, 1.5 mmol), MeI (0.103 ml, 1.65 mmol), potassium carbonate (0.41 g, 3.0 mmol) and DMF (5 ml) was stirred at room temperature for 19 hours. The mixture was diluted with water (50 ml) and extracted with ethyl acetate (50 ml). The extract was washed with water, dried over magnesium sulfate and concentrated in vacuo. The residue was purified by silica gel chromatography eluting with hexane/ethyl acetate (3:1) to give 0.38 g (98%) of the title compound as crystals.

1. extractionextracted with ethyl acetate (50 ml)
2. washThe extract was washed with water
3. dry with materialdried over magnesium sulfate
4. concentrationconcentrated in vacuo
5. customThe residue was purified by silica gel chromatography
6. washeluting with hexane/ethyl acetate (3:1)