Abstract

AbstractNovel C‐2 homo‐pyranose nucleosides can be synthesized by regioselective glycoconjugation of C‐2 acetoxymethyl glycals with nucleobases in the presence of a catalytic amount of a Lewis acid. The reaction proceeded via the formation of exo‐Ferrier allylic cation as an intermediate and the site selectivity is controlled on the basis of HSAB principle.

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