Niobium(V) chloride catalyzed microwave assisted synthesis of 2,3-unsaturated O-glycosides by the Ferrier reaction

NbCk catalyzes the Ferrier reaction of per-O-acetylated glycals with primary, secondary, altylic, benzylic and monosaccharide alcohols to give 2,3-unsaturated alpha-glycosides in short reaction times under microwave irradiation conditions. (c) 2005 Elsevier Ltd. All rights reserved.