1, l-Difluoroethyl iodide (2) was prepared from vinylidene fluoride and hydrogen iodide in 96% yield. It telomerized with tetrafluoroethylene with acyl peroxide catalysis, but other radical generators were ineffective. The telomers CH3 (CF2), 1 (3) reacted thermally with ethylene to form CH3 (CF2), CH2CH21 (4). These in turn were converted to alcohols (6),(meth) acrylates (7), and chlorosulfates (8) by replacement of the iodine atom. The ...