A NEW ROUTE TO THIOSULFONATE AND SELENOSULFONATE FROM DISULFIDES AND DISELENIDES - APPLICATION TO THE SYNTHESIS OF NEW THIOESTER AND SELENOESTER OF TRIFLIC ACID

Alkyl and aryl trifluoromethanethiosulfonates(1) (or selenosulfonates) were prepared in one step either from alkyl and aryl sulfenyl (or sel enenyl) chlorides and sodium trifluoromethanesulfinate (3) or, more ge nerally, from disulfides (or diselenides), 3, and bromine. The second method involved trifluoromethanesulfonyl bromide as key intermediate. Benzenethiosulfonates were obtained in a similar way from disulfides, benzenesulfinate, and bromine but benzeneselenosulfonates could not be obtained by the same method from diselenides.