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Article Dans Une Revue Angewandte Chemie International Edition Année : 2017

A Naphtho-Fused Double [7]Helicene from a Maleate-Bridged Chrysene Trimer

Résumé

Perkin condensation of chrysenyl-6-acetic acid with chrysenylene-6,12-diglyoxylic acid followed by in situ esterification gives a bismaleate, whose conjugated stilbene moieties are efficiently shielded against intermolecular condensations and undergo iodine-catalyzed oxidative photocyclization in toluene without the need for high dilution. The concentration is limited by the low solubility of the flexible bismaleate at room temperature. The so-obtained double [7]helicene crystallizes in a nonchiral meso form...
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hal-01546294 , version 1 (23-06-2017)

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Marli Ferreira, Guillaume Naulet, Hugo Gallardo, Pierre Dechambenoit, Harald Bock, et al.. A Naphtho-Fused Double [7]Helicene from a Maleate-Bridged Chrysene Trimer. Angewandte Chemie International Edition, 2017, 56, pp. 3379-3382. ⟨10.1002/anie.201610793⟩. ⟨hal-01546294⟩

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