Publicação
Synthesis and photophysical characterization of novel tri-(hetero)arylimidazoles
| Resumo: | A series of new tri-(hetero)arylimidazoles 2a-d were synthesized in moderate to excellent yields by condensation of diphenylethanedione with heterocyclic aldehydes 1a-d in the presence of ammonium acetate in glacial acetic acid. The photophysical properties were evaluated by UV-vis absorption and fluorescence spectroscopy and revealed that the novel tri-(hetero)arylimidazoles 2 are highly emissive with Stokes’ shifts in the range 66-90 nm. |
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| Autores principais: | Ferreira, R. Cristina M. |
| Outros Autores: | Batista, Rosa Maria Ferreira; Costa, Susana P. G.; Raposo, M. Manuela M. |
| Assunto: | Imidazole Furan Thiophene Heterocycles Synthesis Fluorescence UV-visible spectroscopy Heterocyclic aldehydes Five-membered heterocycles Ciências Naturais::Ciências Químicas |
| Ano: | 2013 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | A series of new tri-(hetero)arylimidazoles 2a-d were synthesized in moderate to excellent yields by condensation of diphenylethanedione with heterocyclic aldehydes 1a-d in the presence of ammonium acetate in glacial acetic acid. The photophysical properties were evaluated by UV-vis absorption and fluorescence spectroscopy and revealed that the novel tri-(hetero)arylimidazoles 2 are highly emissive with Stokes’ shifts in the range 66-90 nm. |
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