title: Chitosan aerogel: a recyclable, heterogeneous organocatalyst for the asymmetric direct aldol reaction in water.
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.
authors: Department of Organic Chemistry A. Mangini, University of Bologna, V. Risorgimento 4, 40136 Bologna, Italy. ricci@ms.fci.unibo.it
authors: Alfredo
authors: A
authors: Ricci
authors: Luca
authors: L
authors: Bernardi
authors: Claudio
authors: C
authors: Gioia
authors: Simone
authors: S
authors: Vierucci
authors: Mike
authors: M
authors: Robitzer
authors: Françoise
authors: F
authors: Quignard
mesh_terms: D000438:Alcohols / Q000138:chemical synthesis* / Q000737:chemistry; D000818:Animals; D002384:Catalysis; D048271:Chitosan / Q000737:chemistry*; D003445:Crustacea / Q000737:chemistry; D005782:Gels / Q000737:chemistry*; D015394:Molecular Structure; D013237:Stereoisomerism; D014867:Water / Q000737:chemistry*
chemical_list: D000438:Alcohols; D005782:Gels; D014867:Water; D048271:Chitosan