Diethyl Ether → 5-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluorooctyl)dibenzothiophen-5-ium;trifluoromethanesulfonate

Participants

Reaction Steps

To a solution of 1.24 g (2 mmol) of 2-(perfluorooctylsulfinyl)biphenyl in 10 ml of 1,1,2-trichloro -1,2,2-trifluoroethane was added 0.336 ml (2 mmol) of trifluoromethanesulfonic anhydride, and the mixture was stirred at room temperature for 3 days. Then, 0.112 ml (0.67 mmol) of trifluoromethanesulfonic anhydride was added to the reaction mixture and the mixture was stirred for additional 2 days. After diethyl ether was added to the reaction mixture, a white precipitate was collected by filtration to give 1.36 g (91%) of S-(perfluorooctyl)dibenzothiophenium trifluoromethanesulfonate. The properties of the product are shown in Table 1.

Provenance & Evidence