Porphyrins in Diels-Alder reactions. Improvements on the synthesis of barrelene-fused chlorins using microwave irradiation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2005

Autores

Silva, AMG (Autor) Outra; Tome, AC (Autor) Outra; Neves, MGPMS (Autor) Outra; Cavaleiro, JAS (Autor) Outra; Kappe, CV (Autor) Outra

Revista

Título: Tetrahedron Letters

Vol. 46

Páginas: 4723-4726

ISSN: 0040-4039

Editora: Elsevier

Indexação

ISI Web of Knowledge - 48 Citações

Scopus - 48 Citações

Outras Informações

ID Authenticus: P-000-2CM

DOI: 10.1016/j.tetlet.2005.05.047

Abstract (EN): The microwave irradiation technique was applied to the Diels-Alder reaction of tetrakis(pentafluorophenyl)porphyrin with pentacene and naphthacene. Both reactions proceed within minutes to afford the corresponding monoadducts in 83% and 23% yield, respectively. When compared with the yields obtained under classical heating (22% and no reaction, respectively), this represents an impressive improvement of these reactions. Bisadducts (bacteriochlorins and isobacteriochlorins) are also obtained in the reaction with pentacene; these compounds are not formed under classical heating.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4