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Addition of dihydrogen to a borylborenium center

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Abstract

The activation of a H–H bond, the simplest covalent bond, is a fundamentally important process. Addition of H2 to an elemental center typically occurs on low valent transition metal or main group complexes through oxidative addition to afford metal dihydride complexes. In contrast, activation of H2 on a high valent center generally results in heterolytic cleavage of the H–H bond to a proton and hydride. Here, we report experimental and computational evidence for the addition of H2 to a borenium center in an N-heterocyclic carbene (NHC) coordinated borylborenium cation, which leads to the formation of a dihydroborenium complex accompanied by the elimination of two σ-bonded substituents, namely mesityl (Mes) and pinacolboryl (Bpin) groups, as mesitylboronic ester.

Graphical abstract: Addition of dihydrogen to a borylborenium center

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Publication details

The article was received on 21 Nov 2017, accepted on 27 Nov 2017 and first published on 28 Nov 2017


Article type: Edge Article
DOI: 10.1039/C7SC04987K
Citation: Chem. Sci., 2018, Advance Article
  • Open access: Creative Commons BY-NC license
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    Addition of dihydrogen to a borylborenium center

    J. Zheng, Z. H. Li and H. Wang, Chem. Sci., 2018, Advance Article , DOI: 10.1039/C7SC04987K

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