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Updated: Jun 5, 2026

Preparation of a Corannulene-functionalized Hexahelicene by Copper(I)-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
Published on: September 18, 2016
Preparation of highly hindered polyenes with tert-butyl groups in internal positions
Markus Betz1, Henning Hopf, Ludger Ernst
1Institut für Organische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
Abstract:
The conjugated tetraenes 3 and 4 a-c have been prepared and shown to possess an orthogonal structure. This was not only demonstrated by their spectroscopic properties and X-ray structural analysis of solid representatives (e.g., 4 a-c) but also by the resolution of these chiral compounds by GC and HPLC chromatography using various chiral selector systems. The chemical behavior of the typical tetraene 4 a has been studied using bromination, hydrogenation, epoxidation, and photo equilibration reactions.
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