反应详情

温度

83 °C

A mixture of (Z)-methyl 3-hydroxy-2-((2-methoxypyrimidin-5-yl)methyl)acrylate (10 g, 42.0 mmol) and thiourea (6.39 g, 84 mmol) in isopropanol (200 mL) was heated at 83° C. overnight. After removing the solvent, the residue was dissolved in water, washed with diethyl ether twice and acidified with AcOH to pH=4.5. The resulting solid was filtered and concentrated in vacuo to afford the title compound (4.4 g, 16.70 mmol, 39.8% yield) as yellow solid. LCMS: rt=1.31 min, [M+H+]=251

1. customAfter removing the solvent
2. dissolutionthe residue was dissolved in water
3. washwashed with diethyl ether twice
4. filtrationThe resulting solid was filtered
5. concentrationconcentrated in vacuo