反应详情

3-Fluoro-4-methoxybenzonitrile (2.0 g, 13.2 mmol) in water (5 mL) and concentrated sulphuric acid (5 mL) was heated at 110° C. for 4 hours. The solution was then cooled to room temperature and neutralized with solid sodium carbonate. Acidification with glacial acetic acid leads to a white precipitate, which was collected by filtration and dissolved in dichloromethane. The resulting solution was dried over sodium sulfate, filtered, and concentrated to give the product as a beige-colored solid (2.03 g, 90% yield).

1. filtrationAcidification with glacial acetic acid leads to a white precipitate, which was collected by filtration
2. dissolutiondissolved in dichloromethane
3. dry with materialThe resulting solution was dried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated