Ethylene Glycol → HCID 21882021, compound

Participants

Reaction Conditions

Reaction Steps

Separately, a 100 ml mixing vessel equipped with a calcium chloride-containing tube was charged with 36.9 g (0.20 mole) of 1,2-epoxydodecane. While the charged 1,2-epoxydodecane was stirred and cooled with water, concentrated sulfuric acid was gradually dropped in an amount of 0.4 g (0.004 mole) into the cooled 1,2-epoxydodecane. After stirring for 15 minutes, the resultant mixture was placed into the dropping apparatus attached to the reaction vessel and was dropped into the ethylene glycol contained in the reaction vessel and maintained at a temperature of 50 to 55° C. over a time of 2 hours. Then the reaction of the mixture was carried out at a temperature of 50 to 55° C. for one hour. After the exhaustion of the starting material, namely 1,2-epoxydodecane, was confirmed by a thin-layer chromatography, the reaction was stopped. A saturated aqueous sodium hydrogen carbonate solution was mixed in an amount of 50 ml into the resultant reaction liquid in the reaction vessel, the resultant mixture was stirred for 10 minutes to neutralize the reaction liquid. The reaction liquid was subjected to an extraction procedure using diethyl ether to extract the reaction product. The resultant extraction liquid was concentrated by using a rotary evaporator. An ethylene glycol monohydroxydodecyl ether mixture was obtained in an amount of 48.3 g (yield: 98.1%).

Provenance & Evidence