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Synthesis and characterization of new hexahelicene derivatives |
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| Authors: | Faouzi Aloui Angéla Marinetti |
| Institution: | a Laboratoire de Synthèse Organique Asymétrique et Catalyse Homogène (O1UR1201), Faculté des Sciences, Avenue de l’environnement, 5019 Monastir, Tunisia b Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France |
| Abstract: | The synthesis and structural characterization of a new hexahelicene derivative 2 is reported. This compound features a new type of structure bearing a bromine atom and a methoxy group. Suitable crystals of the latter indicate that its conformation closely resembles that of the unsubstituted 6]helicene, whose idealized symmetry is C2. This 3-bromo-14-methoxyhexahelicene was subjected to lithiation/phosphinilation and yielded the new 3-methoxy-14-(diphenylphosphino)hexahelicene 3. |
| Keywords: | Hexahelicene Heck reaction Photodehydrocyclization Helical phosphine Helical alcohol |
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