反应详情

A mixture of 4-methoxyphenol (100.0 g, 0.8 mol), dry potassium carbonate (166.7 g, 1.2 mol), acetonitrile (800 mL), and 2-ethylhexyl bromide (173.8 g, 0.9 mol) was stirred mechanically and heated at reflux for 4 days. After cooling, the mixture was diluted with water (1.5 L), and then the organic phase was separated. The aqueous layer was extracted with hexane, and the combined organic layers were washed two times with 1.0 M NaOH and water. After drying over MgSO4, the solvent was removed under reduced pressure to give an orange oil. The crude product was distilled under reduced pressure to give 152 g (80%) of a clear oil. (bp 135-138° C. at 0.4 mmHg).

1. temperatureheated
2. temperatureat reflux for 4 days
3. temperatureAfter cooling
4. customthe organic phase was separated
5. extractionThe aqueous layer was extracted with hexane
6. washthe combined organic layers were washed two times with 1.0 M NaOH and water
7. dry with materialAfter drying over MgSO4
8. customthe solvent was removed under reduced pressure
9. customto give an orange oil
10. distillationThe crude product was distilled under reduced pressure