Synthesis of Multifunctional Aryl(trifloxyalkenyl)iodonium Triflate Salts

A convenient
procedure for the synthesis of aryl­(trifloxyalkenyl)­iodonium
triflate salts from commercially available (diacetoxyiodo)­benzene,
trimethylsilyl trifluoromethanesulfonate, and acetylenes under mild
conditions was developed. The obtained multifunctional hypervalent
vinyliodonium salts equipped with electrophilic and nucleophilic functions
could serve as novel C2 synthons for organic transformations. The
structure of the iodonium salts was identified by multidimensional
NMR spectroscopy and X-ray crystallography.