METHOD FOR PRODUCING HETEROAROMATIC SULFONAMIDE COMPOUND

摘要

The present invention provides: a method for producing a mixed sulfonic acid anhydride represented by general formula (1) by reacting a sulfonic acid compound represented by general formula (2) with a perfluoroalkyl sulfonic acid anhydride or a perfluoroalkyl sulfonic acid halide; and a method for producing a sulfonamide compound represented by formula (4) by reacting an amine compound represented by general formula (3) with a mixed sulfonic acid anhydride represented by general formula (1).