反应详情

A mixture of 4-(1H-imidazol-1-yl)-1-(2-naphthyl)-1-butanol (0.450 g) and p-toluenesulfonic acid hydrate (0.589 g) in dimethoxyethane (20 ml) was refluxed for 16 hours. To the mixture was added water, then the whole was concentrated and extracted with ethyl acetate. The extract was washed with water and brine, dried and concentrated. The residue was chromatographed on silica gel (ethyl acetate-MeOH=20:1) followed by crystallization from ethyl acetate-hexane to give the titled compound (0.112 g) as a colorless powder.

1. temperaturewas refluxed for 16 hours
2. concentrationthe whole was concentrated
3. extractionextracted with ethyl acetate
4. washThe extract was washed with water and brine
5. customdried
6. concentrationconcentrated
7. customThe residue was chromatographed on silica gel (ethyl acetate-MeOH=20:1)
8. customfollowed by crystallization from ethyl acetate-hexane