反应详情

温度

50 °C

(2-Amino-1,3-oxazol-5-yl)(4-fluorophenyl)methanone (US2005032859, 1 g, 4.85 mmol) and 40% methyl amine water in excess (50 mL) were combined in tert-butanol (50 mL). The mixture was stirred at 50° C. under nitrogen for 2 hours. The mixture was concentrated in vacuo. The residue was filtered through a pad of silica gel using neat ethyl acetate as eluant. The solution was concentrated in vacuo to afford 0.73 g (66%) of 4-(4-fluorophenyl)-2-(methylamino)pyrimidin-5-ol as a crystalline brown solid. MS m/z 220 [M]+

1. concentrationThe mixture was concentrated in vacuo
2. filtrationThe residue was filtered through a pad of silica gel using neat ethyl acetate as eluant
3. concentrationThe solution was concentrated in vacuo