反应详情

N-(4-(4-oxo-7-((trimethylsilyl)ethynyl)-4H-chromen-3-yl)phenyl)methanesulfonamide (1.8 g, 4.37 mmol) was dissolved in a 1:1 mixture of methanol/tetrahydrofuran (6 ml), potassium carbonate (121 mg, 0.2 eq) was added, and the mixture was stirred at room temperature for 1 hour. After the reaction was completed the solvent was removed under reduced pressure, and the residue was extracted with ethyl acetate in the presence of water. The organic phase was dried over magnesium sulfate, filtered, and solvent removed under reduced pressure to afford N-(4-(7-ethynyl-4-oxo-4H-chromen-3-yl)phenyl)methanesulfonamide.

1. additionwas added
2. customwas removed under reduced pressure
3. extractionthe residue was extracted with ethyl acetate in the presence of water
4. dry with materialThe organic phase was dried over magnesium sulfate
5. filtrationfiltered
6. customsolvent removed under reduced pressure