Ethanol → Sodium 1,3,5-tricyclohexylbenzenesulfonate

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30 g of tricyclohexylbenzene was dissolved in 50 ml of methylene chloride, and the solution was stirred under cooling at 3° C. Thereto, 15.2 g of chlorosulfonic acid was slowly added dropwise and after the dropwise addition, the reaction solution was stirred at room temperature for 5 hours. Subsequently, 10 g of ice was charged, and 40 g of an aqueous 50% sodium hydroxide solution was charged. Furthermore, 20 g of ethanol was added, and the mixture was stirred at 50° C. for 1 hour. Insoluble matters were removed by filtration, and the residue was distilled off under reduced pressure at 40° C. The precipitated crystals were collected by filtration and then washed with hexane to obtain 30 g of sodium 1,3,5-tricyclohexylbenzenesulfonate.

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