Base-catalyzed condensation of cyclopentadiene derivatives. Synthesis of fulvalene analogues: strong proaromatic electron acceptors |
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| Authors: | Emad Aqad Philippe Leriche Gilles MabonAlain Gorgues Magali AllainAmédée Riou Arkady EllernVladimir Khodorkovsky |
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| Institution: | a Laboratoire IMMO, UMR CNRS, UFR Sciences, Université d'Angers, 2 Bd Lavoisier, 49045 Angers cedex, France
b Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel |
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| Abstract: | A series of proaromatic electron acceptors derived from fulvenes were synthesized from tetrachlorocyclopentadiene and previously unknown 1,4-dicyano- and 1,4-dialkoxycarbonyl-2,3-dimethoxy cyclopentadienes. Two reversible one-electron reductions steps observed for fulvalenes coalesce into one two-electron reduction step upon increasing the length of the conjugating bridge. |
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| Keywords: | condensation electron acceptors fulvalene |
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