反应详情

1,2,3,6-Tetrahydro-4-phenylpyridine (410 mg, 2.6 mmol), benzaldehyde (300 mg, 2.9 mmol), sodium triacetoxyborate (1.1 g, 5.2 mmol) and acetic acid (1.5 ml, 26 mmol) were stirred in dichloroethane at a room temperature for 14 hours. To the reaction solution was added ethyl acetate, and the resulting solution was washed with sodium hydroxide aqueous solution (1 N) and saturated brine and dried with anhydrous sodium sulfate. Then the solvent was evaporated under a reduced pressure. Thereafter, the resulting residue was separated and purified by a silica gel column chromatography to obtain 330 mg of the title compound (1.3 mmol, 45% in yield).

1. washthe resulting solution was washed with sodium hydroxide aqueous solution (1 N) and saturated brine
2. dry with materialdried with anhydrous sodium sulfate
3. customThen the solvent was evaporated under a reduced pressure
4. customThereafter, the resulting residue was separated
5. custompurified by a silica gel column chromatography