反应详情

温度

53 °C

Ether 109 (301 mg, 1.21 mmol) was treated with 1.25M HCl in MeOH (10 mL) and the mixture was stirred at 53° C. for 4 h. The resulting cooled solution was diluted with ice-water (100 mL) and extracted with CH2Cl2 (5×80 mL). The combined extracts were evaporated to dryness and the residue was triturated in pentane to give 2-(4-fluorophenyl)-5-pyrimidinol (111) (225 mg, 98%) as a white solid: mp (pentane) 200-202° C.; 1H NMR [(CD3)2SO] δ 10.55 (v br s, 1H), 8.42 (s, 2H), 8.29 (ddt, J=9.1, 5.7, 2.6 Hz, 2H), 7.28 (ft, J=9.0, 2.6 Hz, 2H); HRESIMS calcd for C10H8FN2O m/z [M+H]+ 191.0615. found 191.0616.

1. temperatureThe resulting cooled solution
2. extractionextracted with CH2Cl2 (5×80 mL)
3. customThe combined extracts were evaporated to dryness
4. customthe residue was triturated in pentane