| abstract |
【Task】 The present invention provides a sulfonic acid compound having a hydrocarbon moiety having 8 or more carbon atoms and a difluoroalkylsulfonic acid moiety having an appropriate acidity. SOLUTION: General formula (1) Embedded image (1) (Wherein, n represents 2 or 3, M represents an alkali metal, an alkaline earth metal or ammonium, m represents 1 when M is a monovalent cation, and 2 when M is a divalent cation. Represents.) 2- (bicyclo [2.2.1] hept-2-yl) -1,1-difluoroethylsulfinate or 2- (bicyclo [2.2.1] hept-2-yl) -1 represented by , 1-difluoroethylsulfonic acid. [Selection diagram] None |