Synthesis of β-D-Mannopyranosides and β-L-Rhamnopyranosides by Glycosidation at C-1

Article abstract of DOI:10.1021/jo00319a016

A stereoselective synthesis of β-D-mannopyranosides and β-L-rhamnopyranosides has been achieved by glycosidation at C-1.Treatment of the 1-O-tosyl derivative 2 with 1 equiv of methanol in acetonitrile gave methyl 3,4,6-tri-O-benzyl-2-O-(methylsulfonyl)-β-