反应详情

温度

-78 °C

To a room-temperature solution of (S)-4-benzyl-3-(2-(4-fluorophenyl)acetyl)oxazolidin-2-one (5.1 g, 16.3 mmol, 1.0 equiv) in dry THF (100 mL) was added iodomethane (1.0 mL, 16.2 mmol, 1.0 equiv) by syringe. The resulting mixture was cooled to −78° C., and NaHMDS (8.15 mL, 2M in THF, 16.3 mmol, 1.0 equiv) was added dropwise by syringe. After stirring for 15 minutes at −78° C., the reaction mixture was allowed to warm to room temperature. The reaction was quenched with saturated aq. NH4Cl, and diluted with EtOAc. The organic layer was washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. Purification by silica gel chromatography (7-20% EtOAc/hexanes) provided the title compound (2.6 g, 49%).

1. temperatureto warm to room temperature
2. customThe reaction was quenched with saturated aq. NH4Cl
3. additiondiluted with EtOAc
4. washThe organic layer was washed with brine
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated in vacuo
8. customPurification by silica gel chromatography (7-20% EtOAc/hexanes)