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https://hdl.handle.net/1822/49498
Título: | Novel bithienyl-benzimidazoles: one-pot synthesis and optical and solvatochromic studies |
Autor(es): | Batista, Rosa Maria Ferreira Costa, Susana P. G. Raposo, M. Manuela M. |
Palavras-chave: | Bithiophene Benzimidazoles UV-visible spectroscopy Solvatochromism Fluorescence Synthesis |
Data: | 2017 |
Citação: | Batista, R. M. F.; Costa, S. P. G.; Raposo, M. M. M. Novel bithienyl-benzimidazoles: one-pot synthesis and optical and solvatochromic studies. 21st Int. Electron. Conf. Synth. Org. Chem., 1–30 November 2017; Sciforum Electronic Conference Series, 2017, Vol. 21; doi:10.3390/ecsoc-21-04742. |
Resumo(s): | Benzimidazoles are a group of heterocyclic compounds which have been applied in numerous aspects of science and technology. As a result of their interesting electronic and optical properties when incorporated in push-pull systems, benzimidazole derivatives found application as solvatochromic and fluorescent probes, chemosensors, organic light emitting diodes (OLEDs) and non-linear optical (NLO) chromophores.[1] In the last decade our research group has reported experimental and theoretical results regarding the auxiliary donor/acceptor effect of electron deficient benz-X-azole derivatives in push-pull systems.[1b-c, 1e, 1g-i] In this work we describe the synthesis, UV-visible absorption, fluorescence and solvatochromic studies of a series of heterocyclic chromophores of the benzimidazole type. These new bithienyl-benzimidazoles were synthesised in good to excellent yields, by metal-free one-step reaction of o-nitroanilines in the presence of formyl-bithiophenes, via a reductive cyclization, and their optical and solvatochromic properties were evaluated in solvents of different character. |
Tipo: | Resumo em ata de conferência |
URI: | https://hdl.handle.net/1822/49498 |
DOI: | 10.3390/ecsoc-21-04742 |
Versão da editora: | http://sciforum.net/conference/176/paper/4742 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Comunicações e Proceedings |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Communication ECSOC 2017 doi10.3390ecsoc-21-04742.pdf | ECSOC 21-communication - doi:10.3390/ecsoc-21-04742 | 176,33 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons