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An Ionic Liquid Solution of Chitosan as Organocatalyst
Organic Chemistry, Department of Chemistry, University of Paderborn, Warburgerstr. 100, 33098 Paderborn, Germany
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Received: 29 August 2013; in revised form: 9 October 2013 / Accepted: 24 October 2013 / Published: 11 November 2013
Abstract: Chitosan, which is derived from the biopolymer chitin, can be readily dissolved in different ionic liquids. The resulting homogeneous solutions were applied in an asymmetric Aldol reaction. Depending on the type of ionic liquid used, high asymmetric inductions were found. The influence of different additives was also studied. The best results were obtained in [BMIM][Br] without an additive.
Keywords: ionic liquids; chitosan; Aldol reaction
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Heckel, T.; Konieczna, D.D.; Wilhelm, R. An Ionic Liquid Solution of Chitosan as Organocatalyst. Catalysts 2013, 3, 914-921.
Heckel T, Konieczna DD, Wilhelm R. An Ionic Liquid Solution of Chitosan as Organocatalyst. Catalysts. 2013; 3(4):914-921.
Heckel, Tatjana; Konieczna, Dagny D.; Wilhelm, René. 2013. "An Ionic Liquid Solution of Chitosan as Organocatalyst." Catalysts 3, no. 4: 914-921.