反应详情

A 250 mL, one-neck, round bottomed flask equipped with a magnetic stirrer and reflux condenser was charged with 1-chloromethyl-3-nitrobenzene (10.0 g, 58.3 mmol), morpholine (15.0 g, 175 mmol) and toluene (75 mL), and the solution was heated at reflux for 2.5 h. The reaction mixture was allowed to cool to ambient temperature then washed with 1N aqueous sodium hydroxide (2×50 mL). The aqueous layer was extracted with ethyl acetate (3×50 mL), and the combined extracts were dried over sodium sulfate and concentrated under reduced pressure to afford compound 9 as an off-white solid. 1H NMR (CDCl3) δ (ppm) 8.22 (s, 1H), 8.12 (d, 1H, J=8.2 Hz), 7.68 (d, 1H, J=7.6 Hz), 7.49 (t, 1H, J=7.9 Hz), 3.73 (m, 4H), 3.59 (s, 2H), 2.46 (m, 4H).

1. customA 250 mL, one-neck, round bottomed flask equipped with a magnetic stirrer
2. temperaturereflux condenser
3. temperaturethe solution was heated
4. temperatureat reflux for 2.5 h
5. washthen washed with 1N aqueous sodium hydroxide (2×50 mL)
6. extractionThe aqueous layer was extracted with ethyl acetate (3×50 mL)
7. dry with materialthe combined extracts were dried over sodium sulfate
8. concentrationconcentrated under reduced pressure