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Synfacts 2006(4): 0384-0384  
DOI: 10.1055/s-2006-932087
Metal-Mediated Synthesis
© Georg Thieme Verlag Stuttgart · New York

The Oxidation of Cyclohexene with an Ionic-liquid in a Microreactor

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada
C. Basheer, M. Vetrichelvan, V. Suresh, H. K. Lee*
National University of Singapore and Singapore-MIT Alliance, Singapore
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Publication History

Publication Date:
24 March 2006 (online)

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Significance

The electrochemical oxidation of cyclohexene with aqueous ionic liquid in a silicone-based T-shaped microreactor was demonstrated. Thus, the reaction of cyclohexene with a Cu(II)-diamine complex was performed in an ionic-liquid [bmim][BF4]/phosphate buffer (0.5% w/w) across a voltage of 4 kV at a constant current of 200 µA to give the four oxidized products in 95% conversion. The authors mentioned that catalytic activities and yields of the products in the micro­reactor were relatively higher than those in the conventional bulk reactor. The catalytic activities mediated by a Cu(II)-Schiff base complex and Mn(II) complexes in the microreactor were also described.