反应详情

To a solution of methyl 4-[(4-nitrophenyl)methoxy]benzenepropanoate (0.55 g, 1.67 mmol) and bismuth (III) chloride (0.79 g, 2.5 mmol) in methanol (30 mL) was added sodium borohydride (0.51 g, 13 mmol), and the mixture was stirred at room temperature for 2 hrs. Insoluble material was filtered off, and the filtrate was concentrated. Water was added to the residue, and the mixture was extracted with ethyl acetate. The extract was washed with saturated aqueous sodium hydrogencarbonate, dried and concentrated. The residue was purified by silica gel column chromatography (hexane/ethyl acetate=5:1) to give the title compound (0.13 g, yield 25%) as a powder.

1. filtrationInsoluble material was filtered off
2. concentrationthe filtrate was concentrated
3. additionWater was added to the residue
4. extractionthe mixture was extracted with ethyl acetate
5. washThe extract was washed with saturated aqueous sodium hydrogencarbonate
6. customdried
7. concentrationconcentrated
8. customThe residue was purified by silica gel column chromatography (hexane/ethyl acetate=5:1)