反应详情

A solution of 1,2-epoxybutane (2.0 mL, 23 mmol) and imidazole (2.37 g, 35 mmol) in acetonitrile (20 mL) was stirred at reflux for 24 h. The mixture was concentrated, taken up in water (30 mL) and extracted with ethyl acetate (9×10 mL). The combined extracts were dried (Na2SO4) and concentrated. The residue was purified by flash column chromatography (SiO2, CH2Cl2-methanol-ammonium hydroxide 80:20:1) to give 1-(1H-imidazol-1-yl)-2-butanol (1.57 g, 48%) as a colorless oil. NMR spectrum was consistent with structure. MS EI: M+• 140.0948 (M+• 140.0950).

1. temperatureat reflux for 24 h
2. concentrationThe mixture was concentrated
3. extractionextracted with ethyl acetate (9×10 mL)
4. dry with materialThe combined extracts were dried (Na2SO4)
5. concentrationconcentrated
6. customThe residue was purified by flash column chromatography (SiO2, CH2Cl2-methanol-ammonium hydroxide 80:20:1)