Synthesis and structural characterization of tris(2-pyridonyl)methyl complexes of zinc and thallium: a new class of metallacarbatranes and a monovalent thallium alkyl compound

Abstract

Tris(2-pyridonyl)methanes may be synthesized via the reactions of the respective 2-pyridone with CHX₃ (X = Cl, Br) and K₂CO₃ in the presence of [Buⁿ₄N]Br, followed by acid-catalyzed isomerization with camphorsulfonic acid. These compounds provide access to a new class of alkyl ligands that feature oxygen donors and are capable of forming metallacarbatranes and a monovalent thallium alkyl compound.