Issue 34, 2010
From the journal:

Chemical Communications

Chitosan aerogel: a recyclable, heterogeneous organocatalyst for the asymmetric direct aldol reaction in water†‡

Alfredo Ricci,*a   Luca Bernardi,a   Claudio Gioia,a   Simone Vierucci,a   Mike Robitzerb  and  Françoise Quignard*b  

* Corresponding authors

a Department of Organic Chemistry “A. Mangini”, University of Bologna, V. Risorgimento 4, 40136 Bologna, Italy
E-mail: ricci@ms.fci.unibo.it
Fax: +39 051 2093654
Tel: +39 0512093635

b Institut Charles Gerhardt-Montpellier, Matériaux Avancés pour la Catalyse et la Santé, UMR5253 CNRS-ENSCM-UM2-UM1, 8 rue de l’Ecole Normale, 34296 Montpellier, France
E-mail: quignard@enscm.fr
Fax: +33 467 163 470
Tel: +33 467 163 460

Abstract

Aerogel microspheres of chitosan, an abundant biopolymer obtained from marine crustaceans, have been successfully applied to catalyze the asymmetric aldol reaction in water, providing the products in high yields and with good stereoselectivity (up to 93% ee) and recyclability (up to 4 runs). Yields were favourably affected by additives such as DNP and stearic acid.

Graphical abstract: Chitosan aerogel: a recyclable, heterogeneous organocatalyst for the asymmetric direct aldol reaction in water

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Article information

DOI
https://doi.org/10.1039/C0CC01502D
Article type
Communication
Submitted
20 May 2010
Accepted
02 Jul 2010
First published
12 Aug 2010

Chem. Commun., 2010,46, 6288-6290

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Chitosan aerogel: a recyclable, heterogeneous organocatalyst for the asymmetric direct aldol reaction in water

A. Ricci, L. Bernardi, C. Gioia, S. Vierucci, M. Robitzer and F. Quignard, Chem. Commun., 2010, 46, 6288 DOI: 10.1039/C0CC01502D

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