反应详情

温度

70 °C

(S)-tert-butyl 2-(7-bromo-1H-naphtho[1,2-d]imidazol-2-yl)pyrrolidine-1-carboxylate (0.990 g, 2.38 mmol) was suspended in DMF (8 mL) and treated with NIS (1.03 g, 4.59 mmol). The reaction mixture was stirred at 70° C. for 2 d, then cooled to RT. The mixture was then diluted with EtOAc and the organic solution was washed with 3× with brine then dried over MgSO4, filtered and concentrated under reduced pressure. The crude residue was purified by silica column chromatography (30% to 55% EtOAc/Hex) to afford (S)-tert-butyl 2-(7-bromo-5-iodo-1H-naphtho[1,2-d]imidazol-2-yl)pyrrolidine-1-carboxylate (753 mg, 58%).

1. temperaturecooled to RT
2. washthe organic solution was washed with 3× with brine
3. dry with materialthen dried over MgSO4
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe crude residue was purified by silica column chromatography (30% to 55% EtOAc/Hex)