反应详情

1,3-Difluoro-2-iodo-4-nitrobenzene (5.0 g, 17.5 mmol) was dissolved in 50 ml of methanol, and NaOMe (3.79 g, 70.1 mmol) was added. The solution was heated under reflux for 16 h. After concentration, the residue was chromatographed on silica gel using petroleum ether/ethyl acetate. This gave 2-iodo-1,3-dimethoxy-4-nitrobenzene (3 g) as a yellowish powder.

1. temperatureThe solution was heated
2. temperatureunder reflux for 16 h
3. concentrationAfter concentration
4. customthe residue was chromatographed on silica gel