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Updated: Jul 11, 2026

Preparation of a Corannulene-functionalized Hexahelicene by Copper(I)-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Hexabenzo[4.4.4]propellane: a helical molecular platform for the construction of electroactive materials
Paromita Debroy1, Sergey V Lindeman, Rajendra Rathore
1Department of Chemistry, Marquette University, PO Box 1881, Milwaukee, Wisconsin 53201, USA.
Abstract:
Helical hexabenzo[4.4.4]propellane (a relative of hexaphenylethane) and its derivatives are synthesized and their structures are established by X-ray crystallography. Isolation and X-ray crystallographic characterization of a robust trication-radical salt of hexamethoxypropellane derivative confirms that its framework is stable toward oxidative (aliphatic) C-C bond cleavage. It is also demonstrated that propellane can be easily brominated at the 4,4'-positions of the biphenyl linkages for its usage as a molecular platform for the preparation of electroactive materials.
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