Cationic Bismuth Compounds in Organic Synthesis and Catalysis: New Prospects for CH Activation

Abstract

Well-defined cationic bismuth complexes, [Bi(NR2)Ln]+, based on simple, monodentate, monoanionic amide ligands have recently been reported (R = Me, iPr, etc.). The unusual reactivity patterns of these species are highlighted, with a focus on a recently reported double CH activation reaction. Mechanistic aspects and the impact of charge on reactivity are discussed. These results are compared with literature-known strategies in bismuth-mediated CH activations, and their potential implications for future research in the field are outlined. 1 Introduction 2 Bismuth-Mediated CH Activation 3 Cationic Bismuth Complexes 4 Cationic Bismuth Amides for CH Activation 5 Conclusion