反应详情

To a solution of vinyl lithium (2.04 g, 0.06 mole, 2.5 ml) in dry THF (30 ml) under N2 with stirring, at -60° was added dropwise a solution of naphthaldehyde (4.68 g, 0.03 mole) in 10 ml THF. The reaction was kept at -60° for 30 min, the flask was then warmed to room temperature and 5 ml MeOH added cautiously with rigorous stirring, followed by 100 ml of ether. The ethereal solution was washed with brine and dried over MgSO4. After evaporation of the solvent, the residue was chromatographed through Florisil (250 g), eluted first with hexane and then a mixture 20% ether in hexane, giving the expected product. 4.77 g (86% yield). b.p. 92-105°/10μ.

1. washThe ethereal solution was washed with brine
2. dry with materialdried over MgSO4
3. customAfter evaporation of the solvent
4. customthe residue was chromatographed through Florisil (250 g)
5. washeluted first with hexane