反应详情

温度

95 °C

A 250-mL round bottomed flask is charged with 5-bromo-2,4-dimethylphenol (3.135 g, 15.6 mmol) and dimethylformamide (DMF) (50 mL). Potassium carbonate (23.7 g, 172 mmol) and bromobutene (15.8 mL, 156 mmol) are added and the reaction mixture is heated to 95° C. for 2 hr. After cooling to room temp, water (200 mL) is added. The product is extracted into ether (2×100 mL), and the combined organic fractions are washed with brine, dried over sodium sulfate and dried in vacuo. Yield=3.63 g (91.3%) of light yellow liquid.

1. temperatureAfter cooling to room temp
2. extractionThe product is extracted into ether (2×100 mL)
3. washthe combined organic fractions are washed with brine
4. dry with materialdried over sodium sulfate
5. customdried in vacuo