反应详情

While cooling well, a solution of 2.5 g of sodium borohydride in 10 ml of water is added dropwise to a solution of 20.2 g of para-cyclohexyl-acetophenone in 250 ml of methanol. The mixture is stirred at room temperature for 1 hour and the pH then adjusted to 2 with semi-concentrated hydrochloric acid. The batch is evaporated completely and the residue extracted several times with ether. The solution is dried and the ether evaporated to obtain methyl-(para-cyclohexylphenyl)-carbinol in the form of colorless crystals melting at 81°-83°C.

1. temperatureWhile cooling well
2. customThe batch is evaporated completely
3. extractionthe residue extracted several times with ether
4. customThe solution is dried
5. customthe ether evaporated