Benzoyl chloride → (4-Methyl-2-oxochromen-7-yl) benzoate
反応式
[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([CH3:13])=[CH:7][C:8](=[O:12])[O:9]2)=[CH:4][CH:3]=1.[C:14](Cl)(=[O:21])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.CCN(CC)CC>C1COCC1>[C:14]([O:1][C:2]1[CH:11]=[C:10]2[C:5]([C:6]([CH3:13])=[CH:7][C:8](=[O:12])[O:9]2)=[CH:4][CH:3]=1)(=[O:21])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1参加物
5
実験手順
To a solution of 7-hydroxy-4-methyl-chromen-2-one (0.5210 g, 3.0 mmol) and benzoyl chloride (0.4844 g, 0.4 mL, d=1.211 g/mL, 3.4 mmol) in THF (40 mL) was added Et3N (1 mL) at room temperature. The reaction mixture was stirred at room temperature overnight and filtered. The filtrate was concentrated to give the crude product 7-benzoyloxy-4-methyl-coumarin.