Reactions involving perfluoro-2-iodopropane and 1, 1-difluoroethene, give telomers (1) and these telomer iodides are coupled to give [(CF3) 2CF (CH2CF2) n−] 2 (2). Fluorodeiodination gives a series of compounds (CF3) 2CF (CH2CF2) nF (3). Lewis acid- induced eliminations from these systems is very effective using SbF5 and cyclisations can also be induced by this methodology. A series of conjugated polymers is obtained by ...
