反应 #3689914
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US06743785B2
反应条件: temp:22.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a solution of indole-7-carboxaldehyde 1 (4.00 g, 27.6 mmol) in 1,2-dichloroethane (120 mL) at 20-24° C. was added allylamine (2.50 mL, 33.1 mmol), acetic acid (3.4 mL), and sodium triacetoxyborohydride (5.85 g, 27.6 mmol). The resulting mixture was stirred at 20-24° C. for 5 hours. An additional 1.5 g (7.1 mmol) of sodium triacetoxyborohydride was added and the resulting mixture was stirred overnight. The mixture was diluted with dichloromethane (300 mL), washed carefully with aqueous sodium bicarbonate (100 mL), and the layers were separated. The organic layer was washed with water (100 mL), saturated aqueous sodium chloride (100 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was subjected to silica gel chromatography, eluting with 10-30% ethyl acetate in hexanes. Fractions containing product were combined and concentrated under reduced pressure to provide 4.21 g (82%) of the desired compound as a light yellow oil. the resulting mixture was stirred overnight washed carefully with aqueous sodium bicarbonate (100 mL) the layers were separated The organic layer was washed with water (100 mL), saturated aqueous sodium chloride (100 mL) dried over sodium sulfate filtered concentrated under reduced pressure eluting with 10-30% ethyl acetate in hexanes Fractions containing product concentrated under reduced pressure
来源 ID: ord-88c6d581ec40428ea215c7cac3270052