Synthesis 2002(12): 1701-1706
DOI: 10.1055/s-2002-33643
PAPER
© Georg Thieme Verlag Stuttgart · New York

Formyl C-Glycosides as Precursors to Glycosyl Nitrile Oxides and Nitrones

Alessandro Dondoni*, Pier Paolo Giovannini
Laboratorio di Chimica Organica, Dipartimento di Chimica, Università di Ferrara, Via Borsari 46, 44100 Ferrara, Italy
e-Mail: adn@dns.unife.it;
Further Information

Publication History

Received 2 April 2002
Publication Date:
05 September 2002 (online)

Abstract

Formyl C-glycosides, prepared via the thiazole-based formylation of sugar lactones in three steps, are readily condensed with N-benzylhydroxylamine and hydroxylamine to give the corresponding glycosyl nitrones and oximes respectively. The latter imino derivatives are the precursors to nitrile oxides via the N-bromosuccinimide method.

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Since crude aldehydes were used in these experiments, the yields were calculated in respect to the amount of aldehyde in the crude material.