Ethanol → Sodium 1,3,5-tricyclohexylbenzenesulfonate

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Tricyclohexylbenzene amounting to 30 g was dissolved in 50 ml of methylene chloride, and agitated while cooling at 3° C. Then, 15.2 g of chlorosulfonic acid was slowly dropped thereinto. After the completion of the dropping, the mixture was agitated at room temperature for 5 hours, and 10 g of ice was poured thereinto. Further, 40 g of a 50% aqueous solution of sodium hydroxide was poured into the mixture, and 20 g of ethanol was added thereto. The mixture was agitated at 50° C. for 1 hour, and any undissolved matter was removed by filtration. Vacuum distillation was carried out at 40° C., and separated crystals were collected by filtration. The crystals were washed with hexane. Thus, 30 g of sodium 1,3,5-tricyclohexylbenzenesulfonate was obtained.

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