Electrophilic Reactions of 2-Chloroperfluoro-1,3-butadiene.

Abstract Electrophilic chlorofluorination and bromofluorination of 2-chloroperfluoro-1,3-butadiene (1) have been found to occur exclusively at the 1,4-positions and regioselectively. Under mild conditions, diene 1 interacts with SbF5 to form vinyl derivatives of antimony.