反应详情

Thionyl chloride (31.5 ml; 0.432 mol) was slowly added dropwise at 0C to a solution of 4-fluoro-2-nitrobenzoic acid (16.0 g, 86.4 mmol) in methanol (240 ml). After warming to RT, stirring overnight and boiling under reflux for 4 h, the reaction solution was concentrated in vacuo and partitioned between ethyl acetate and potassium hydrogencarbonate solution. Drying and concentration of the organic phase afforded a yellow oil.

1. temperatureunder reflux for 4 h
2. concentrationthe reaction solution was concentrated in vacuo
3. custompartitioned between ethyl acetate and potassium hydrogencarbonate solution
4. customDrying
5. customconcentration of the organic phase afforded a yellow oil