反应详情

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%).

1. temperaturethe reaction was heated
2. temperatureto reflux for 4 h
3. concentrationconcentrated in vacuo
4. customThe crude product was azeotroped with toluene (2×50 mL)
5. washwashed with saturated NaHCO3 (3×50 mL), water (1×50 mL) and brine (1×50 mL)
6. dry with materialdried with MgSO4
7. concentrationconcentrated in vacuo