反应详情

A mixture of 4-(3-bromopropyl)-1,2-dihydro-6-methoxynaphthalene (10 g, 35.6 mmol.) and potassium phthalimide (7.9 g, 42.7 mmol.) was stirred in N,N-dimethylformamide (50 ml) for one hour at 100° C. The reaction mixture was cooled to room temperature, to which was poured water, then the organic substance was extracted with ethyl acetate. The extract solution was washed with a saturated aqueous saline solution and water, which was dried over anhydrous magnesium sulfate, then the solvent was distilled off under reduced pressure. The residue thus obtained was purified by means of a silica gel column chromatography (ethyl acetate:hexane=2:8) to afford the titled compound (11.8 g, yield 95%, oily).

1. extractionthe organic substance was extracted with ethyl acetate
2. washThe extract solution was washed with a saturated aqueous saline solution and water, which
3. dry with materialwas dried over anhydrous magnesium sulfate
4. distillationthe solvent was distilled off under reduced pressure
5. customThe residue thus obtained
6. customwas purified by means of a silica gel column chromatography (ethyl acetate:hexane=2:8)