Self-condensation of Tetrafluorophthalimide and Related Reactions

Abstract

Tetraflurophthalimide [2] underwent self-condensation in the presence of alkali or potassium fluoride in aprotic polar solvents. The product was perfluorooligoimide, [4] (n=2-3), mp > 360° C, carrying a terminal dicarboxyl group, and was readily soluble in aqueous alkali. Several reactions of [2] and its derivatives were carried out to establish the structure of [4].