Performance of chiral tetracarbonylmolybdenum pyrindanyl amine complexes in catalytic olefin epoxidation

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Neves, P (Autor) Outra; Nogueira, LS (Autor) Outra; Valente, AA (Autor) Outra; Pillinger, M (Autor) Outra; Goncalves, IS (Autor) Outra; Sampaio Dias, IE (Autor) Outra; Sousa, CAD (Autor) Outra; Rizzo Aguiar, F (Autor) Outra; Rodriguez Borges, JE (Autor) FCUP

Revista

Título: Journal of Organometallic Chemistry

Vol. 858

Páginas: 29-36

ISSN: 0022-328X

Editora: Elsevier

Indexação

ISI Web of Knowledge - 6 Citações

Scopus - 9 Citações

Outras Informações

ID Authenticus: P-00N-M0G

DOI: 10.1016/j.jorganchem.2018.01.003

Abstract (EN): Tetracarbonylmolybdenum(0) complexes of the type cis-[Mo(CO)(4)(L)] containing chiral 7-(1-pyrindanyl) amine ligands were prepared and found to be effective precatalysts for the epoxidation of achiral (cis-cyclooctene) and prochiral (DL-limonene and trans-beta-methylstyrene) olefins at 55 degrees C. Epoxides were the only products formed from cis-cyclooctene (100% yield) and trans-b-methylstyrene (100% selectivity at 82-85% conversion), and the main products formed from DL-limonene (80-82% 1,2-epoxide selectivity at 85% conversion). Characterization of recovered catalysts revealed that the precatalysts were transformed in situ to stable polyoxomolybdate salts containing the beta-octamolybdate anion [beta-Mo8O26](4-), which was responsible for the catalytic reaction.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8