反应详情

温度

100 °C

1,3-Dichloroacetone (3.65 g, 28.75 mmol) was added to a solution of 3-fluorobenzamide (2 g, 14.37 mmol) in dry toluene (20 mL). The resulting reaction mixture was stirred at 100° C. for 5 h. The reaction mixture was concentrated under reduced pressure and the crude product was purified by column chromatography (silica gel 60-120 mesh, eluent 10% EtOAc in petroleum ether) to afford 4-(chloromethyl)-2-(3-fluorophenyl)oxazole (1.2 g, yield 39%) as a yellow liquid. NMR (300 MHz, CDCl3) δ 7.85-7.83 (m, 1H), 7.77-7.73 (m, 2H), 7.48-7.41 (m, 1H), 7.20-7.14 (m, 1H), 4.58 (d, J=0.9 Hz, 2H).

1. customThe resulting reaction mixture
2. concentrationThe reaction mixture was concentrated under reduced pressure
3. customthe crude product was purified by column chromatography (silica gel 60-120 mesh, eluent 10% EtOAc in petroleum ether)