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

Abstract

Well-defined cationic bismuth complexes, [Bi(NR₂)L_n]⁺, 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

Key words

bismuth - cationic species - CH activation - CH functionalization - ortho-metalation - main group chemistry

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