反应详情

温度

140 °C

Phenylurethane (15.0 g, 90.9 mmol) was dissolved in N,N-dimethylformamide (40 mL), and thereto were added cesium fluoride (1.15 g, 7.57 mmol) and 4-methoxymethyl-1,3-dioxolan-2-one (10.0 g, 75.7 mol), in order. The mixture was stirred for 50 hours at 140° C. under an atmosphere of argon. After filtering off the insoluble materials, the filtrate was condensed in vacuo, and the residue was purified by silica gel chromatography to give the subject 3-phenyl-5-methoxymethyloxazolidin-2-one (12.8 g, yield 81.6%).

1. filtrationAfter filtering off the insoluble materials
2. customcondensed in vacuo
3. customthe residue was purified by silica gel chromatography