Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/60705
Type: Artigo de periódico
Title: Ionically Tagged Iron Complex-Catalyzed Epoxidation of Olefins in Imidazolium-Based Ionic Liquids
Author: dos Santos, MR
Diniz, JR
Arouca, AM
Gomes, AF
Gozzo, FC
Tamborim, SM
Parize, AL
Suarez, PAZ
Neto, BAD
Abstract: A new ionophilic ligand and a new ionically tagged imidazolium-based iron(III) complex were synthesized and applied in the air oxidation (also hydrogen peroxide) of alkenes in imidazolium-based ionic liquids. At least ten recycling reactions were performed. The epoxidized olefin was obtained in very good yields of 8491?%. Some important mechanistic insights are also provided based on electrospray ionization quadrupoletime of flight mass spectrometry for the oxidation reaction. These results indicate that oxidations can take place by two different pathways, depending on the reaction condition: a radical or a concerted mechanism. These results contribute towards a better understanding of iron-catalyzed oxidation mechanisms.
Subject: cytochromes
ionic liquids
iron
mass spectrometry
reaction mechanisms
Country: Alemanha
Editor: Wiley-v C H Verlag Gmbh
Rights: fechado
Identifier DOI: 10.1002/cssc.201100453
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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