反应详情

A dry reaction flask was charged with 4-nitrophenol (3.858 g, 27.75 mmol), anhydrous K2CO3 (8.29 g, 60 mmol) and acetone (250 mL). To this heterogeneous mixture was added 2-pyridylmethylbromide hydrobromide (7.0 g, 27.75 mmol) and refluxed for 24 h. From the resulting reaction mixture, 200 mL of acetone was removed under reduced pressure. The resulting residue was then diluted with ice-water (1 liter), the solid crushed out was filtered, washed with water and dried well to give 2-[(4-nitrophenoxy)methyl]pyridine (6.05 g, 95% yield). 1H NMR (CDCl3): δ 8.61 (d, 1H, J=4.8 Hz), 8.19 (d, 2H, J=9.0 Hz), 7.72 (m, 2H), 7.46 (d, 1H, J=7.8 Hz), 7.25 (m, 1H), 7.05 (d, 2H, J=9.3 Hz), 5.28 (s, 2H); LCMS (m/z): 231 (MH+).

1. customA dry reaction flask
2. temperaturerefluxed for 24 h
3. customwas removed under reduced pressure
4. additionThe resulting residue was then diluted with ice-water (1 liter)
5. customthe solid crushed out
6. filtrationwas filtered
7. washwashed with water
8. customdried well