[OH:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][C:9]2[CH:14]=[CH:13][C:12]([OH:15])=[CH:11][CH:10]=2)=[CH:4][CH:3]=1.[CH3:16][O:17][CH2:18][CH2:19]Cl.[C:21](=[O:24])([O-])[O-].[K+].[K+].[I-].[K+].[CH3:29][CH2:30]CCCC>C1(C)C=CC=CC=1.O.CN(C=O)C>[CH3:16][O:17][CH2:18][CH2:19][O:15][C:12]1[CH:13]=[CH:14][C:9]([S:8][C:5]2[CH:6]=[CH:7][C:2]([O:1][CH2:29][CH2:30][O:24][CH3:21])=[CH:3][CH:4]=2)=[CH:10][CH:11]=1
A solution was prepared by combining 25.0 g of bis(4-hydroxyphenyl) sulfide, 20.7 g of 2-chloroethyl methyl ether, 31.7 g of potassium carbonate, 3.62 g of potassium iodide, and 50 g of DMF. The solution was aged at 80° C. for 1 week. Under ice cooling, 50 g of water was added to the solution to quench the reaction. To the solution, 50 g of toluene and 50 g of hexane were added. The organic layer was separated and washed with water. On subsequent concentration in vacuum, 28.5 g of the target compound, bis[4-(2-methoxy-ethoxy)phenyl]sulfide was obtained as oily matter. Yield 74%.
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