Journal
NEW JOURNAL OF CHEMISTRY
Volume 38, Issue 9, Pages 4607-4614Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4nj00777h
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Funding
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Instituto Nacional de Inovacao em Diagnosticos para Saude Publica (INDI-Saude)
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Photoactive 2-(2'-hydroxyphenyl)benzoxazole-1,4-dihydropyridine (HBO-DHP) dyads were obtained by a multicomponent one-pot Hantzsch synthesis using a fluorescent aldehyde, a 1,3-dicarbonylic compound and ammonium acetate. The key step in this synthetic methodology was the synthesis of the formyl benzoxazole derivative through a Duff-modified functionalization protocol. UV-Vis absorption and fluorescence emission spectroscopies were also applied to better understand the photophysics of these compounds. The three novel fluorescent compounds were obtained in moderate yields as stable solids with absorption in the UV region and emission in the blue-green region. Preliminary results indicate that after excitation both HBO and DHP fluorophores behave independently in the HBO-DHP structure.
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