Chemical synthesis of a comb-shaped, branched stereoregular polysaccharide, 4-O-α-D-mannopyranosyl-(1->6)-α-D-mannopyranan

Article abstract of DOI:10.1016/0008-6215(93)80030-I

4-O-α-D-Mannopyranosyl-(1->6)-α-D-mannopyranan (7) was prepared via ring-opening polymerization of 1,6-anhydro-2,3-di-O-benzyl-4-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-β-D-mannopyranose (5) using phosphorus pentafluoride as initiator in dichloromet