Both redox forms of the dendrimer [dendr-64-NHCOCpFeII(eta 6-C6Me6)]64+/0, 6/7, are synthesized and characterized, and the 19-electron form reduces C60 to [dendr-64-NHCOCpFeII(eta 6-C6Me6)]64+(C60-.)64, 8.

The species obtained by activation of perfluoroalkylated sulfoxides with trifluoromethanesulfonic anhydride behaves as highly electrophilic entities. Their reaction with nitriles allows a Ritter-like process leading to the new fluorinated acylsulfilimines 1-21 after hydrolysis. This flexible methodology allows some variation of both the sulfoxide and nitrile components. Derived acylsulfoximines 22-25 or free sulfoximines 26-28 could be selectively obtained, as needed, by further controlled oxidation with the cheap and nontoxic potassium

We studied the thermal behavior of some intermediates formed by reaction of nitriles with perfluoroalkyl sulfoxides upon trifluoromethanesulfonic anhydride activation. Bistriflate ketal 3, precursor of sulfilimine 1, may undergo a rearrangement to sulfanyl nitrile 5 after triflic acid elimination under thermal conditions. With p-tolyl trifluoromethyl sulfox-

No abstract