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Updated: Apr 26, 2026

Efficient Synthesis of All-Carbon Quaternary Centers via the Conjugate Addition of Functionalized Monoorganozinc Bromides
Published on: May 26, 2019
Oxidative bond formation and reductive bond cleavage at main group metal centers: reactivity of five-valence-electron
Andrey V Protchenko1, Deepak Dange, Matthew P Blake
1Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford , South Parks Road, Oxford, OX1 3QR, U.K.
Abstract:
Monomeric five-valence-electron bis(boryl) complexes of gallium, indium, and thallium undergo oxidative M-C bond formation with 2,3-dimethylbutadiene, in a manner consistent with both the redox properties expected for M(II) species and with metal-centered radical character. The weaker nature of the M-C bond for the heavier two elements leads to the observation of reversibility in M-C bond formation (for indium) and to the isolation of products resulting from subsequent B-C reductive elimination (for both indium and thallium).
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