Hydroformylation and isomerization of alkenes catalyzed by [rh(cod)(amine)2]pf6 complexes immobilized on poly(4-vinylpyridine) under co/h2o conditions

• A.J. Pardey ^[1] ; J. Brito ^[1] ; A.B. Rivas ^[1] ; M.C. Ortega ^[1] ; C. Longo ^[1] ; P.J. Baricelli ^[2] ; E. Lujano ^[2] ; M. Yañez ^[3] ; C. Zuñiga ^[3] ; R. Lopez ^[3] ; S.A. Moya ^[3]
  1. [1] Universidad Central de Venezuela

     Universidad Central de Venezuela

     Venezuela

     
  2. [2] Universidad de Carabobo

     Universidad de Carabobo

     Venezuela

     
  3. [3] Universidad de Santiago de Chile

     Universidad de Santiago de Chile

     Santiago, Chile

     

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• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 48, Nº. 2, 2003, págs. 57-60
• Idioma: inglés
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  • Reported here is the catalytic studies of the hydroformylation and the isomerization of 1-hexene to aldehydes (heptanal and 2-methyl-hexanal) and 2-hexene, respectively by [Rh(COD)(amine)2]PF6 complexes (COD = 1,5-cyclooctadiene, amine = 4-picoline, 2-picoline or 2,6-lutidine) immobilized on poly(4-vinylpyridine) in contact with 10 mL of 80% aqueous 2-ethoxyethanol, under CO atmosphere (0.9 atm at 100 C). The results of these studies show the following reactivity order defined as Turnover Frequencies for aldehydes production: 2-picoline {2.9} > 4-picoline {2.6} > 2,6-lutidine {2.4}. The electronics and steric effects induced by the amine ligands apparently influence on the observed catalytic activities. The [Rh(COD)(2-picoline)2]PF6/poly(4-vinylpyridine) system also catalyzed the hydroformylation and isomerization of 1-octene