反应详情

温度

120 °C

3-[(trifluoromethyl)oxy]phenol (19.95 mg, 0.112 mmol) was dissolved in 1 mL of dimethylformamide. 3-(6-fluoro-3-pyridinyl)-5,5-dimethyl-2,4-imidazolidinedione (Intermediate 106, 25 mg) and potassium carbonate (31.0 mg, 0.224 mmol) were added. The reaction mixture was stirred at 120° C. during 22 hours. Some diethylether (4 mL) and water (4 mL) were added. The aqueous layer was extracted 4 times with diethylether. The gathered organic layers were dried over sodium sulphate and evaporated giving a residue, which was purified by mass directed purification (METHOD I). After evaporation of the fraction, addition of a solution of saturated NaHCO3 (3 mL) and extraction with dichloromethane (four times 4 mL), evaporation afforded the title compound as a white solid (23 mg).

1. extractionThe aqueous layer was extracted 4 times with diethylether
2. dry with materialThe gathered organic layers were dried over sodium sulphate
3. customevaporated
4. customgiving a residue, which
5. customwas purified by mass
6. custompurification (METHOD I)
7. customAfter evaporation of the fraction, addition of a solution of saturated NaHCO3 (3 mL) and extraction
8. customwith dichloromethane (four times 4 mL), evaporation