反应详情

温度

2 °C

To a suspension of potassium carbonate (17 g, 123 mmol) in N,N-dimethylformamide (40 ml) was added a solution of 3-ethyl-phenol (14.8 ml, 123 mmol) in N,N-dimethylformamide (40 ml) at 2° C. under an argon atmosphere. After stirring for 50 min at 2° C., benzyl bromide (14.6 ml, 123 mmol) was added over a period of 15 min at 2° C. The suspension was stirred for additional 30 min at 2° C. and for 12 h at ambient temperature. After adding ice water (250 ml), the solution was extracted two times with diethyl ether. The combined extracts were washed two times with brine and dried over sodium sulfate. Evaporation of the solvent gave a yellow oil which was purified by column chromatography (silica gel, cyclohexane) to yield 24.3 g (114 mmol, 93%) of the title compound as yellow liquid.

1. stirringThe suspension was stirred for additional 30 min at 2° C. and for 12 h at ambient temperature
2. extractionthe solution was extracted two times with diethyl ether
3. washThe combined extracts were washed two times with brine
4. dry with materialdried over sodium sulfate
5. customEvaporation of the solvent
6. customgave a yellow oil which
7. customwas purified by column chromatography (silica gel, cyclohexane)