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Type: Artigo de periódico
Title: Investigation of a new oxidative catalytic system involving Jacobsen's catalyst in the absence of organic solvents
Author: Guedes, DFC
Mac Leod, TCO
Gotardo, MCAF
Schiavon, MA
Yoshida, IVP
Ciuffi, KJ
Assis, MD
Abstract: In this work, the commercially available Jacobsen's catalyst, Mn(salen), was occluded in a hybrid polymeric membrane based on poly(dimethylsiloxane) (PDMS). This system was used as a catalytic barrier between two different phases: an organic substrate phase (cyclohexane, cyclooctene, cyclohexene or styrene) in the absence of solvent, and an aqueous solution of either t-BuOOH or H2O2. Such system was characterized by UV-vis spectroscopy, TGA, DTA, DSC, and SEM techniques. The occluded complex proved to be an efficient catalyst for the oxidation of alkanes and alkenes when t-BuOOH was used as oxidant. However, the hybrid polymeric membrane was a barrier against H2O2, preventing this oxidant from reaching the bulk of the membrane and oxidizing the substrate. (c) 2005 Elsevier B.V. All rights reserved.
Subject: Jacobsen's catalyst
hybrid polymeric membrane
"green chemistry"
Country: Holanda
Editor: Elsevier Science Bv
Citation: Applied Catalysis A-general. Elsevier Science Bv, v. 296, n. 1, n. 120, n. 127, 2005.
Rights: fechado
Identifier DOI: 10.1016/j.apcata.2005.08.045
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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