Thionyl Chloride → 3-(4-Chloroquinazolin-2-yl)phenyl acetate
反応式
[C:1]([O:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([C:11]2[NH:20][C:19](=O)[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]=2)[CH:6]=1)(=[O:3])[CH3:2].S(Cl)([Cl:24])=O>CN(C=O)C>[C:1]([O:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([C:11]2[N:20]=[C:19]([Cl:24])[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]=2)[CH:6]=1)(=[O:3])[CH3:2]参加物
4
実験手順
To 3-(4-oxo-3,4-dihydroquinazolin-2-yl)phenyl acetate was added thionyl chloride (100 mL) and DMF (2 mL) and the reaction was heated to reflux for 4 h. The flask was allowed to cool to RT and then concentrated in vacuo. The crude product was azeotroped with toluene (2×50 mL), taken up in CH2Cl2 (300 mL) and washed with saturated NaHCO3 (3×50 mL), water (1×50 mL) and brine (1×50 mL), dried with MgSO4 and concentrated in vacuo to give 3-(4-chloroquinazolin-2-yl)phenyl acetate. (9.77 g, mmol, 100%).