反应详情

1-(2-Chloro-ethyl)-3-m-tolyl-urea (I-131a: 4 g, 18.86 mmol) in dry DMF (70 mL) was added to a stirred mixture of sodium hydride (1.358 g, 28.30 mmol) in THF (70 mL) at 0° C. The reaction was stirred at room temperature for 1 hour. The reaction was monitored by TLC (100% ethylacetate). The reaction mixture was quenched with MeOH at 0° C., concentrated under reduced pressure and partitioned between ice water and chloroform. The organic layer was washed with brine solution, dried over Na2SO4, and concentrated under reduced pressure to afford 2.7 g (81.34% yield) of 1-m-tolyl-imidazolidin-2-one.

1. customThe reaction mixture was quenched with MeOH at 0° C.
2. concentrationconcentrated under reduced pressure
3. custompartitioned between ice water and chloroform
4. washThe organic layer was washed with brine solution
5. dry with materialdried over Na2SO4
6. concentrationconcentrated under reduced pressure