Fluorosulfonyl-containing heterocyclic compounds ii properties of hexafluoroisobutenylidene sulfate

The reactions of hexafluoroisobutenylidene sulfate with tertiary amines, ethers, sulfolane, and alkali metal halides were studied. Hexafluorodimethylketene is liberated, and the reagent is sulfotrioxidized during the reaction of hexafluoroisobutenylidene sulfate with these nucleophilic compounds. Hexafluoroisobutenylidene sulfate is an electrophilic compound of the quasicomplex type, which contains a labile sulfotrioxide grouping.See [1] for communication I.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 306–309, March, 1972.