An Easy and Efficient Preparation of Aryl α-O-Δ²−Glycosides

Abstract

Ferrier reaction between acetylglycals and p-NO₂, m-NO₂ and p-t-butylphenol after recrystallization gave aryl O-δ²−glycosides as the pure α anomers. Deacetylation of these compounds and benzylation of the crude diol led to the corresponding aryl α-O-δ²−4,6-di-O-benzyl-glycosides in large amounts.