反应详情

A solution of 6-bromo-2,3-dihydro-1H-quinolin-3-one (0.05 g, 0.219 mmol) in THF (20 mL) and aqueous sodium carbonate (5 mL) was treated with aluminum trichloride (0.116 g, 0.9 mmol) and lithium aluminum hydride (33 mg, 0.9 mmol) The reaction was refluxed for 18 h. and cooled down. The filtrate evaporated to dryness, taken up in water and extracted with EtOAc (3×). Ethyl acetate extracts were dried over sodium sulfate and concentrated. The crude residue was purified by flash chromatography (hexane/EtOAc, 1:3) to afford 6-bromo-2,3-dihydro-1H-quinoline (0.040 g, 87%). LRMS (ES+): 211.3 (M+H)+.

1. temperaturewas refluxed for 18 h.
2. temperaturecooled down
3. customThe filtrate evaporated to dryness
4. extractionextracted with EtOAc (3×)
5. dry with materialEthyl acetate extracts were dried over sodium sulfate
6. concentrationconcentrated
7. customThe crude residue was purified by flash chromatography (hexane/EtOAc, 1:3)