Syntheses of (1,1-Dihydroperfluoroalkyl)aryliodonium Triflates and Their Analogues

Article abstract of DOI:10.1016/S0022-1139(00)81146-X

(1,1-Dihydroperfluoroalkyl)phenyl- and -p-fluorophenyliodonium triflates 2 and 3 were synthesized by the reaction of 1-bis(trifluoroacetoxy)iodo-1,1-dihydroperfluoroalkanes 1 with triflic acid and benzene or fluorobenzene in 1,1,2-trichloro-trifluoroethane.The use of fluorosulfonic acid and sulfuric acid instead of triflic acid afforded (1,1-dihydroperfluoroalkyl)phenyliodonium fluorosulfonate 4 and sulfate 5, respectively.Similarly, (1,1,ω-trihydroperfluoroalkyl)phenyliodonium triflate 7 and 1,1,5,5-tetrahydroperfluoropentane-1,5-bisphenyliodonium triflate 9 were synthesized.