Synthesis 2005(1): 122-130  
DOI: 10.1055/s-2004-834911
PAPER
© Georg Thieme Verlag Stuttgart · New York

N-Glycosyl Amides as Glycosyl Donors in Stereoselective Glycosylation Reactions

Norbert Pleuss, Horst Kunz*
Institut für Organische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
Fax: +49(6131)3924786; e-Mail: hokunz@uni-mainz.de;
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Publikationsverlauf

Received 29 June 2004
Publikationsdatum:
17. November 2004 (online)

Abstract

Due to their high stability, N-glycosyl amides have so far not been considered as glycosyl donors for glycosylation reactions. Two new procedures for the cleavage of the anomeric amide functionality under mild reaction conditions and further stereoselective in situ conversions of the activated glycosyl donors with alcohols and amines to give β-configured O- and N-glycosides are described in this article.