反应详情

To a stirred solution of 3-ethyl phenol (1.50 g, 12.28 mmol) in NaOH (1N) was added epichlorohydrin (2.07 g, 22.47 mmol). The reaction mixture was stirred at room temperature for 4 days. Excess epichlorohydrin was removed by concentration in vacuo and the two-phase mixture treated with NaOH (1N) (10 ml) after addition of THF (10 ml). The reaction mixture was heated to 55° C. for 15 minutes and then stirred at room temperature for 30 minutes. The THF was removed by concentration in vacuo and the product extracted with ethyl acetate (2×50 ml), concentrated in vacuo and purified by flash column chromatography on silica (150:10:1 dichloromethane:methanol:ammonia) to give the product as a yellow oil.

1. customExcess epichlorohydrin was removed by concentration in vacuo
2. additionthe two-phase mixture treated with NaOH (1N) (10 ml)
3. additionafter addition of THF (10 ml)
4. temperatureThe reaction mixture was heated to 55° C. for 15 minutes
5. stirringstirred at room temperature for 30 minutes
6. customThe THF was removed by concentration in vacuo
7. extractionthe product extracted with ethyl acetate (2×50 ml)
8. concentrationconcentrated in vacuo
9. custompurified by flash column chromatography on silica (150:10:1 dichloromethane:methanol:ammonia)