反应详情

温度

100 °C

To a stirred solution of 1-[4-(2-chloroethyl)phenyl]-2-ethyl-4-phenyl-1H-imidazole (1.1 g, 3.4 mmol) and KI (566 mg, 3.4 mmol) in DMF (7 mL) was added sodium azide (443 mg, 6.8 mmol), and then the resulting mixture was stirred overnight at 100° C. The reaction mixture was poured into water, and extracted with ethyl acetate. The organic layer was washed with water and brine, then dried (MgSO4). After removal of solvent, the crude product was purified by flash column chromatography on silica gel eluting with hexane/ethyl acetate (2:1) to afford 960 mg (89%) of the title compound as pale yellow amorphous: MS (ESI) m/z 318 [M+H]+, 1H-NMR (CDCl3)δ1.26 (2H, t, J=7.5 Hz), 2.72 (3H, q, J=7.7 Hz), 2.98 (2H, t, J=6.6 Hz), 3.59 (2H, t, J=6.6 Hz), 7.20-7.41 (9H, m), 7.79 (2H, dd, J=7.1, 1.3 Hz).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with water and brine
3. dry with materialdried (MgSO4)
4. customAfter removal of solvent
5. customthe crude product was purified by flash column chromatography on silica gel eluting with hexane/ethyl acetate (2:1)