Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/10645
Título: | Synthesis of 5-aryl-5´-formyl-2,2´-bithiophenes as new precursors for nonlinear optical (NLO) materials |
Autor(es): | Herbivo, Cyril Comel, Alain Kirsch, G. Raposo, M. Manuela M. |
Palavras-chave: | Synthesis Vilsmeier-Haack-Arnold (VHA) formylation Chloroformylation Suzuki coupling Aldehydes Formyl-substituted aryl-bithiophenes π-conjugated systems UV-visible spectroscopy Nonlinear optical (NLO) precursors UV-vis spectroscopy p-Conjugated systems Vilsmeier-Haack-Arnold (VHA) chloroformylation |
Data: | 8-Jan-2009 |
Editora: | Elsevier 1 |
Revista: | Terahedron |
Citação: | "Terahedron". ISSN 0040-4039. 65:10 (Jan. 2009) 2079-2086. |
Resumo(s): | A series of formyl-substituted 5-aryl-2,2´-bithiophenes 5 were synthesized using two different methods: Vilsmeier-Haack-Arnold reaction (VHA) or through Suzuki coupling. The synthesis of compounds 5 through the Vilsmeier-Haack-Arnold reaction, starting from inexpensive and easily available precursors such as acetophenones, gave the title compounds in low yields after four reaction steps. On the other hand Suzuki coupling of functionalized aryl boronic acids 7 and the 5-bromo-5´-formyl-2,2´-bithiophene 6 gave compounds 5 in good yields in only one step. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/10645 |
DOI: | 10.1016/j.tet.2008.12.078 |
ISSN: | 0040-4039 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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manuscript.pdf | Documento principal 1 | 261,5 kB | Adobe PDF | Ver/Abrir |
manuscript 2.pdf | Documento principal 2 | 103,22 kB | Adobe PDF | Ver/Abrir |