反应详情

温度

100 °C

85 ml of xylene are added to a solution of 15.75 g of sodium in 182.2 g of ethylene glycol. The mixture is heated to 100° C., and a solution of 140.5 g of 3-cyclohexylpropyl bromide in 70 ml of xylene is added dropwise within 3 hours. When the addition has ended, the mixture is boiled for 4 hours under reflux, cooled, and then 500 ml of water are added. The mixture is extracted with twice 500 ml of petroleum ether, the combined organic phases are dried over sodium sulphate and the remaining oil is purified by chromatography on silica gel (migrating agent: 80:20 petroleum ether/ethyl acetate). 105.3 g of 2-(3-cyclohexylpropyloxy)-ethanol are obtained.

1. additionWhen the addition
2. temperatureunder reflux
3. temperaturecooled
4. extractionThe mixture is extracted with twice 500 ml of petroleum ether
5. dry with materialthe combined organic phases are dried over sodium sulphate
6. customthe remaining oil is purified by chromatography on silica gel (migrating agent: 80:20 petroleum ether/ethyl acetate)