反应详情

温度

50 °C

To a suspension of sodium hydride (2.40 g, 60% mineral oil suspension, 60 mmol) in anhydrous DMF (30 ml) is added a solution of 2-naphthalen-1-yl-1H-imidazole (9.70 g, 50 mmol) in DMF (70 ml) at rt. The resulting mixture is stirred at 50° C. for 1 hr, and then cooled to 0° C., after which iodoethane (8.19 g, 52.5 mmol, 1.05 eq.) is added dropwise. The mixture is stirred at rt for 1 hr, and then heated to 50° C. and stirred for an additional 8 hr. The reaction mixture is cooled to rt, and poured into ice-water (500 ml). The mixture is extracted with EtOAc (100 ml×3). The combined organic layers are washed with water and brine, dried over anhydrous sodium sulfate, and solvent is evaporated at reduced pressure. The crude product is purified by flash chromatography on silica gel to give the title compound. LCMS 223 (M+1).

1. temperaturecooled to 0° C.
2. stirringThe mixture is stirred at rt for 1 hr
3. temperatureheated to 50° C.
4. stirringstirred for an additional 8 hr
5. temperatureThe reaction mixture is cooled to rt
6. extractionThe mixture is extracted with EtOAc (100 ml×3)
7. washThe combined organic layers are washed with water and brine
8. dry with materialdried over anhydrous sodium sulfate, and solvent
9. customis evaporated at reduced pressure
10. customThe crude product is purified by flash chromatography on silica gel