An improved preparation of 2,3,5-tri-O-acyl-β-D-ribofuranosyl azides by the Lewis acid-catalysed reaction of β-D-ribofuranosyl acetates and trimethylsilyl azide: An example of concomitant formation of the α anomer by trimethylsilyl triflate catalysis

Article abstract of DOI:10.1016/0008-6215(92)80068-C

An improved synthesis of 2,3,5-tri-O-benzoyl-beta-D-ribofuranosyl azide (A) involves the reaction of trimethylsilyl azide in the presence of a Lewis acid with 1-O-acetyl-2,3,5-tri-O-benzoyl-beta-D-ribofuranose rather than the action of sodium azide upon t