Suzuki-Miyaura cross-coupling reactions of 5,11-dibromotetracene with arylboronic acids, using a triethylammonium-tagged palladium(II) diphenylphosphine complex as catalyst in a pyrrolidinium-based ionic liquid (IL), allowed the preparation of new 5,11-diaryl-substituted tetracenes in good to excellent yields. The synthesis of the new 5,11-diboronic-tetracene bis-pinacolate ester and its use in Suzuki-Miyaura cross-coupling reaction with aryl bromides in IL are also reported. © 2011 American Chemical Society.
Papagni, A., Trombini, C., Lombardo, M., Bergantin, S., Chams, A., Chiarucci, M., et al. (2011). Cross-Coupling of 5,11-Dibromotetracene Catalyzed by a Triethylammonium Ion Tagged Diphenylphosphine Palladium Complex in Ionic Liquids. ORGANOMETALLICS, 30(16), 4325-4329 [10.1021/om2003943].
Cross-Coupling of 5,11-Dibromotetracene Catalyzed by a Triethylammonium Ion Tagged Diphenylphosphine Palladium Complex in Ionic Liquids
Papagni, A;Bergantin S;Miozzo, L
;Parravicini, M
2011
Abstract
Suzuki-Miyaura cross-coupling reactions of 5,11-dibromotetracene with arylboronic acids, using a triethylammonium-tagged palladium(II) diphenylphosphine complex as catalyst in a pyrrolidinium-based ionic liquid (IL), allowed the preparation of new 5,11-diaryl-substituted tetracenes in good to excellent yields. The synthesis of the new 5,11-diboronic-tetracene bis-pinacolate ester and its use in Suzuki-Miyaura cross-coupling reaction with aryl bromides in IL are also reported. © 2011 American Chemical Society.
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