反应详情

温度

0 °C

A solution of 2-methyl-5-(p-tolyl)-pentan-2-ol (10.4 g, 54.1 mmol) in ethyl ether (100 mL) at 0° C. was treated with concentrated sulfuric acid (64 mL). The mixture was stirred at 0° C. for 1.5 hours, and then poured into a mixture of ice/water. The mixture was diluted with ethyl ether, the organic phase was separated, washed with water (2×), saturated sodium bicarbonate and brine. The aqueous phase was extracted with ethyl ether and combined organic extracts were dried over anhydrous magnesium sulfate, filtered and concentrated to give the title material (9.6 g, 100% crude) as a yellowish oil which was used for the next reaction.

1. customthe organic phase was separated
2. washwashed with water (2×), saturated sodium bicarbonate and brine
3. extractionThe aqueous phase was extracted with ethyl ether
4. dry with materialwere dried over anhydrous magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated