2-Ketopentafluoropropanesulfonic acid and related acids
申请人:E. I. Du Pont de Nemours and Company
公开号:US04160780A1
公开(公告)日:1979-07-10
2-Ketopentafluoropropanesulfonic acid is obtained as a product of the reaction of sulfur trioxide and ethyl pentafluoroisopropenyl ether or by transesterification from corresponding esters. Similar sulfonic acids may be obtained by the latter process. The new compounds are useful as monomers for producing polymers, particularly moldable, dyeable, fluoropolymers, and as cationic initiators, e.g., for tetrahydrofuran polymerization.