Copper(II) acetylacetonate anchored onto an activated carbon as a heterogeneous catalyst for the aziridination of styrene

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

Autores

Silva, AR (Autor) REIT; Figueiredo, JL (Autor) FEUP; Freire, C (Autor) FCUP; de Castro, B (Autor) FCUP

Revista

Título: Catalysis Today

Vol. 102

Páginas: 154-159

ISSN: 0920-5861

Editora: Elsevier

Indexação

ISI Web of Knowledge - 47 Citações

Scopus - 48 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Outras Informações

ID Authenticus: P-000-3AT

DOI: 10.1016/j.cattod.2005.02.016

Abstract (EN): Copper(II) acetylacetonate anchored onto a triamine functionalised activated carbon, [Cu(acac)(2)trien] @AC, was tested in the aziridination of styrene, using PhI = NTs as nitrogen source and acetonitrile as solvent, at room temperature. The styrene conversion and total TON of the heterogeneous phase reaction are similar to those relating the same reaction catalysed in homogeneous phase by [Cu(acac)(2)]; nevertheless, the initial activity decreases and reaction time increases due to substract and product diffusion limitations. The heterogeneous catalyst could be reused in further catalytic reactions for four times with successive increase in styrene conversion, initial activity and thus in the total turnover number (TON, better than in homogeneous phase reaction). No metal complex leaching was observed after the consecutive catalytic reactions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6