[S:1]1[CH2:5][CH2:4][CH2:3][CH2:2]1.[CH3:6][O:7][S:8]([C:11]([F:14])([F:13])[F:12])(=[O:10])=[O:9]>ClCCl>[OH:10][S:8]([C:11]([F:14])([F:13])[F:12])(=[O:9])=[O:7].[CH3:6][CH:2]1[CH2:3][CH2:4][CH2:5][S:1]111 mmol of tetrahydrothiophene was dissolved in 10 ml of dichloromethane at 0° C., and about 12 mmol of methyltrifluoromethane sulfonate was slowly dripped to the mixture. As a result, a white solid product in a salt form was obtained after about 5 minutes. The solid product was filtered and dried for 1 hour in an oven at 50° C. to obtain the following product:
Loading…