Gold complexes with remote-substituted amino N-heterocyclic carbenes.
Sofie M P Vanden BroeckNikolaos V TzourasMarina SaabAndreas SimoensBusra DereliIda RitaccoLuigi CavalloGeorgios C VougioukalakisPierre BraunsteinSteven P NolanAndreas A DanopoulosCatherine S J CazinPublished in: Dalton transactions (Cambridge, England : 2003) (2023)
The 4-RN-1,3-Ar 2 -imidazolium salt, R = iPr, t Bu, Ar = Mes, Dipp, Mes = mesityl, Dipp = 2,6-bis-diisopropyl-phenyl was metalated by Au I at the C2-, C5- and 4-RN positions depending on the reactants and conditions employed; a rare direct rearrangement of a Au I aminide to an abnormal imidazol-5-ylidene Au I complex was also observed and based on a DFT study it may involve TfO - facilitated H + transfer.