反应详情

温度

22.5 °C

A solution of 2-(3-methoxy-phenyl)-cyclohexanone (2.04 g, 10.0 mmol) in N,N-dimethylformamide (10 mL) was added over 10 min to a mixture of sodium hydride (0.29 g, 12.0 mmol) in N,N-dimethylformamide (4 mL), the temperature being kept below 30° C. The reaction mixture was stirred at 20-25° C. for 2 h. A solution of 1-iodo-propane (1.17 mL, 12.0 mmol) in N,N-dimethylformamide (2 mL) was added over 10 min at 20-25° C. The mixture was stirred for 18 h, and then, ethanol (2 mL) was slowly added. The mixture was stirred for 0.5 h and then poured onto ice-water. The mixture was extracted with dichloromethane. The organic layer was separated, washed with water, and dried over sodium sulfate. Solvents were removed under reduced pressure and the remaining oil was purified by column chromatography on silica gel using heptane/diethyl ether (4:1, v/v) as eluent to give the title compound (0.74 g, ca. 30%) as pale-yellow oil. MS ISP (m/e): 247.3 [(M+H)+].

1. custombeing kept below 30° C
2. stirringThe mixture was stirred for 18 h
3. stirringThe mixture was stirred for 0.5 h
4. additionpoured onto ice-water
5. extractionThe mixture was extracted with dichloromethane
6. customThe organic layer was separated
7. washwashed with water
8. dry with materialdried over sodium sulfate
9. customSolvents were removed under reduced pressure
10. customthe remaining oil was purified by column chromatography on silica gel