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Synthesis of fused B,N-heterocycles by alkyne cleavage, NHC ring-expansion and C–H activation at a diboryne

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Abstract

The addition of alkynes to a saturated N-heterocyclic carbene (NHC)-supported diboryne results in spontaneous cycloaddition, with complete B[triple bond, length as m-dash]B and C[triple bond, length as m-dash]C triple bond cleavage, NHC ring-expansion and activation of a variety of C–H bonds, leading to the formation of complex mixtures of fused B,N-heterocycles.

Graphical abstract: Synthesis of fused B,N-heterocycles by alkyne cleavage, NHC ring-expansion and C–H activation at a diboryne

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Publication details

The article was received on 05 Apr 2019, accepted on 14 May 2019 and first published on 15 May 2019


Article type: Communication
DOI: 10.1039/C9CC02657F
Chem. Commun., 2019, Advance Article

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    Synthesis of fused B,N-heterocycles by alkyne cleavage, NHC ring-expansion and C–H activation at a diboryne

    T. Brückner, M. Arrowsmith, M. Heß, K. Hammond, M. Müller and H. Braunschweig, Chem. Commun., 2019, Advance Article , DOI: 10.1039/C9CC02657F

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