Synthesis and characterization of a new hexacyclic helicene |
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Authors: | Faouzi Aloui Souad Moussa Béchir Ben Hassine |
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Affiliation: | Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (O1UR1201), Faculté des Sciences, Avenue de l’environnement, 5019 Monastir, Tunisia |
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Abstract: | A new helically chiral hexacyclic system, bearing an acetoxymethyl group, was prepared from a simple naphthalene building block in good yield and purity, via a four-step sequence involving palladium-catalysed Heck couplings and oxidative photocyclizations. Suitable crystals of the latter indicate that its conformation closely resembles that of unsubstituted [6]helicene, whose idealized symmetry is C2. The optical properties of the hexacyclic helicene were investigated and show interesting behaviour. |
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