Abstract:
Aim :To improve the synthesis for 2,5-anhydro-3,4,6-tri-
O-benzyl-D-glucitol.
Methods :Dehydration of D-mannitol,followed by a reaction sequence of selective protection,benzylation,deprotection,tritylation,benzylation and removal of the trityl group,afforded the title compound.
Results :Based on the improvement of the reported synthetic route,2,5-anhydro-3,4,6-tri-
O-benzyl-D-glucitol was synthesized in seven steps from D-mannitol with a total yield of 8.3%.
Conclusion :This new method features mild reaction conditions and facile work-up.