Synthesis and Application of the Products of the Interaction of Sulphuric Anhydride with Perfluoroolefins

A set of the problems and directions of the accelerated development of the methods of synthesis of fluorine-containing β-sultones by means of the interaction of sulphur trioxide with perfluorinated olefins is considered in connection with the outlooks for their wide use to obtain fluorinated materials for a broad range of practical applications. For instance, they are used as semi-products to obtain polyfluorinated sulpho- and carboxylic acids which are involved in the manufacture of fluorinated membranes for electrochemical processes. The effect of substituents at the unsaturated bond on the formation of a fourmembered cycle and the effect of Lewis acids on obtaining unsaturated fluorosulphates. The areas of application are described. Contents