Synthesis and photophysical characterization of novel tri-(hetero)arylimidazoles
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 fl...
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| Other Authors: | , , |
| Format: | conferencePaper |
| Language: | eng |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/1822/32129 |
| Country: | Portugal |
| Oai: | oai:repositorium.sdum.uminho.pt:1822/32129 |
| Summary: | 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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