摘要
Butyllithium was directly added to the solution of polysaccharides in dimethyl sulfoxide. The methylsulfinyl carbanion, as a sugar alkoxide forming reagent, was generated from the solution. All the operations were performed as one-pot reactions. Five polysaccharides from different traditional Chinese medicines and three dextrans were methylated and satisfactory results have been achieved.
Butyllithium was directly added to the solution of polysaccharides in dimethyl sulfoxide. The methylsulfinyl carbanion, as a sugar alkoxide forming reagent, was generated from the solution. All the operations were performed as one-pot reactions. Five polysaccharides from different traditional Chinese medicines and three dextrans were methylated and satisfactory results have been achieved.
