Publications by authors named "Hannah Dengel"

The transformation of C-H bonds into more reactive C-M bonds amenable to further functionalization is of fundamental importance in synthetic chemistry. We demonstrate here that the transformation of neutral bismuth compounds into their cationic analogues can be used as a strategy to facilitate CH activation reactions. In particular, the double CH activation of bismuth-bound diphenyl amide, (NPh ) , is reported along with simple one-pot procedures for the functionalization of the activated positions.

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The synthetic access to cationic bismuth compounds based on simple, monodentate, synthetically useful amido ligands, [Bi(NR ) (L) ] , has been investigated (R=Me, iPr, Ph; L=neutral ligand). With [BPh ] as a counteranion, the formation of contact ion pairs and subsequent phenyl transfer from B to Bi is observed. An intermediate of this reaction, [Bi(NMe ) (HNMe )(BPh )] (1), could be isolated and fully characterized.

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