Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Trifluoromethanethio-(or seleno-)sulfonates (CF 3 SO 2 YR, Y=S, Se) are easily obtained in one step at 0–20 °C from disulfides (or diselenides), sodium trifluoromethanesulfinate and [bis-(trifluoroacetoxy)iodo]benzene (BTIB). ... Aryl selenosulfonates (ArSO 2 SeAr′) are ...