Platinum-Mediated Oxidative Addition and Reductive Elimination of Imidazolium Salts at C4 and C5


  • We thank Nicolas Clement for advice and helpful discussions, Rob Jenkins for technical assistance, and Dr. David Nielsen for help with the preparation of the manuscript. We are grateful to the Engineering and Physical Sciences Research Council (EPSRC) for financial support.


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Wrong way round: Imidazolium salts blocked at C2 undergo oxidative addition to a Pt0 center at C4/C5 (see scheme; nbe=norbornene, IMes=1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene). The resulting carbene ligands, which are bound the “wrong way” are susceptible, in common with their “normal” counterparts, to reductive elimination reactions to regenerate Pt0 complexes and imidazolium salts.