反应详情

6-Chloro-2-fluoro-9H-purine (517.7 mg, 3 mmol), 2-propanol (198.3 mg, 3.3 mmol), PPh3 (866 mg, 3.3 mmol) was mixed under N2 in a 50 mL round-bottom flask at 0° C. DEAD (575 mg, 3.3 mmol) was added via syringe dropwise to the mixture. The temperature was raised to r. t. and the mixture was stirred overnight. Sovent was removed in vacuo and the resulting residue was chromatographed on silica gel (CH2Cl2/EtOAc, 4:1, Rf 0.62). The product was obtained as a white solid (411 mg, 64%).

1. temperatureThe temperature was raised
2. customSovent was removed in vacuo
3. customthe resulting residue was chromatographed on silica gel (CH2Cl2/EtOAc, 4:1, Rf 0.62)