反应详情

4-Chloro-5,7-dimethoxyquinoline (100 mg, 0.40 mmol) and p-nitrophenol (124 mg, 0.89 mmol) in chlorobenzene (2 mL) was heated at reflux for 14 h. Then the reaction mixture was cooled to rt, filtered, and the residue washed with toluene. The solid was suspended in 10% NaOH solution and stirred for 1 h at rt. The yellow solid was collected and washed with EtOAc to give 5,7-dimethoxy-4-(4-nitrophenoxy)quinoline. LCMS m/z=327 (M+1); 1H NMR (CDCl3) δ: 8.60 (d, 1H, J=6.0 Hz), 8.44 (d, 2, J=8.8 Hz), 7.72 (s, 1H), 7.35 (d, 2H, J=8.4 Hz) 6.71 (s, 1H), 6.69 (d, 2H, J=6.4 Hz), 4.08 (s, 3H), 3.97 (s, 3H).

1. temperatureat reflux for 14 h
2. filtrationfiltered
3. washthe residue washed with toluene
4. customThe yellow solid was collected
5. washwashed with EtOAc