Abstract
In the presence of a catalytic amount of tin(II) trifluoromethanesulfonate, various 2-amino-2-deoxy-β-D-glucopyranosides or galactopyranosides are stereoselectively synthesized in good yields from 1,3,4,6-tetra-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxy carbonylamino)-β-D-glucopyranose or galactopyranose and alkyl trimethylsilyl ethers, respectively.