[C:1]1([CH3:11])[CH:6]=[CH:5][C:4]([S:7](Cl)(=[O:9])=[O:8])=[CH:3][CH:2]=1.C1COCC1.[CH3:17][O:18][CH2:19][CH2:20][O:21][CH2:22][CH2:23][OH:24].[OH-].[Na+]>O>[C:1]1([CH3:11])[CH:6]=[CH:5][C:4]([S:7]([O:24][CH2:23][CH2:22][O:21][CH2:20][CH2:19][O:18][CH3:17])(=[O:9])=[O:8])=[CH:3][CH:2]=1Under ice cooling, a mixture of 515 g of p-toluenesulfonyl chloride and 500 ml of THF was added dropwise to a mixture of 295 g of 2-(2-methoxyethoxy)ethanol, 589 g of 25 wt % NaOH aqueous solution, and 2,500 ml of THF. The reaction solution was aged for 1.5 hours, after which 1,500 ml of water was added to quench the reaction. The organic layer was separated and concentrated in vacuum. The concentrate was dissolved in a mixture of 660 ml toluene and 330 ml hexane, and washed with water. The organic layer was concentrated in vacuum, obtaining 684.74 g of the target compound, 2-(2-methoxyethoxy)ethyl p-toluenesulfonate as oily matter. Yield 97%.
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