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9 results on '"Panattoni, Alessandro"'

6. Imidazole-Fused Enediynes by Selective C5-C4 Alkynylations of 4,5-Dibromoimidazoles.

Author

Lessi, Marco, Panattoni, Alessandro, Guglielmero, Luca, Minei, Pierpaolo, and Bellina, Fabio

Subjects
*IMIDAZOLES, *ENEDIYNES, *PALLADIUM, *SONOGASHIRA reaction, *AROMATIZATION
Abstract

An efficient synthesis of symmetrical 1,2-disubstituted 4,5- dialkynylimidazoles by Sonogashira alkynylation of the corresponding 4,5-dibromo derivatives was developed. Moreover, through a careful tuning of the palladium ligand, unsymmetrical 1,2-disusbtituted 4,5-dialkynylimidazoles were also prepared through a regioselective C5 alkynylation of 4,5-dibromoimidazoles, followed by a second alkynylation involving the 4-bromo derivatives so obtained. This interesting class of imidazole-fused enediynes is also able to give thermal Bergman cycloaromatization (BC), as proved by DSC experiments. [ABSTRACT FROM AUTHOR]

Published
2019
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9. Toward the design of alkynylimidazole fluorophores: computational and experimental characterization of spectroscopic features in solution and in poly(methyl methacrylate)

Author

Barone, Vincenzo, primary, Bellina, Fabio, additional, Biczysko, Malgorzata, additional, Bloino, Julien, additional, Fornaro, Teresa, additional, Latouche, Camille, additional, Lessi, Marco, additional, Marianetti, Giulia, additional, Minei, Pierpaolo, additional, Panattoni, Alessandro, additional, and Pucci, Andrea, additional

Published
2015
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