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Neutral Homoaromatic Diboradisilacyclobutene: Synthesis, Structure, and Reactivity

Yu Zhang1, Linlin Wu2, Hao Wang1

  • 1School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China.

Journal of the American Chemical Society
|December 2, 2022
PubMed

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Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
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