反应详情

温度

0 °C

In a round bottom flask under nitrogen, 2-chloro-ethanol (8.3 mL, 120 mmoles) in THF (40 mL) was cooled to 0° C. LDA (60 mL, 120 mmoles) was added dropwise, while maintaining the temperature constant at 0° C. The mixture was stirred at this temperature for 15 minutes, followed by the addition of 2,4-difluoronitrobenzene (11 mL, 100 mmoles). The mixture was stirred at room temperature overnight. Reaction mixture was diluted with water, extracted with EtOAc, washed with brine (1×), dried over Na2SO4, and concentrated under vacuum, to afford the title compound as an off-white solid (20.0 g, 91 mmoles).

1. stirringThe mixture was stirred at room temperature overnight
2. customReaction mixture
3. extractionextracted with EtOAc
4. washwashed with brine (1×)
5. dry with materialdried over Na2SO4
6. concentrationconcentrated under vacuum