The stereospecific formation of alpha-D-mannosyl glycosidic linkages has been achieved in high yield using tetra-O-pivaloyl-alpha-D-mannopyranosyl fluoride and boron trifluoride diethyl etherate in dichloromethane. Examples of the alpha-D-mannosylation of primary, secondary, benzylic and phenolic hydroxyl groups are described. (C) 1999 Elsevier Science Ltd. All rights reserved.
using the Suzuku couplingreaction. Effects of glycoside reactant concentration, halide species, glycoside species, and catalyst species on the incorporation of glycoside ligand into the polymer were investigated. The obtained glycopolymers exhibited specific binding to proteins corresponding to the glycoside ligands. In addition, the biphenyl spacers formed by the Suzuki couplingreaction in the glycopolymer