Abstract
A method is described for the preparation of the 6-O-sulphate esters of D-glucose, D-galactose, N-acetyl-D-glucosamine and N-acetyl-D-galactosamine by the fractionation of the products of the direct sulphation of the corresponding monosaccharides on Dowex 1 anion-exchange resin. The method has also been used for the isolation of the monosulphate and disulphate fractions after the direct esterification of D-fucose and L-fucose.