反应详情

To an ice cold mixture of lithium aluminium hydride (28 mg, 0.74 mmol) in dry diethyl ether (20 ml) was added dropwise methyl E-3-(3-pyridyl)acrylate (100 mg, 0.61 mmol) under argon. The resulting mixture was allowed to warm up to room temperature and stirred for 12 h. Water (0.1 ml), 15% aqueous sodium hydroxide (0.1 ml) and water (0.3 ml) were added sequentially over 0.5 h and the mixture allowed to stir for 1 h. The resulting suspension was filtered and the filtrate concentrated under reduced pressure. Flash chromatography (flash silica gel; 10% methanol in ethyl acetate) gave 3-(3-pyridyl)-1-propanol, which was discarded, and E-3-(3-pyridyl)-1-prop-2-enol (55 mg, 67%) as a colourless oil.

1. stirringto stir for 1 h
2. filtrationThe resulting suspension was filtered
3. concentrationthe filtrate concentrated under reduced pressure