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Issue 6, 2015
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Studies on the diastereoselective oxidation of 1-thio-β-d-glucopyranosides: synthesis of the usually less favoured RS sulfoxide as a single diastereoisomer

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Abstract

A detailed study on the diastereoselective oxidation of 1-thio-β-D-glucopyranosides is reported. It has been shown that the sense and the degree of stereochemical outcome of the oxidation are highly dependent on the substituent of the sulfur and on the protective group of the C2–OH. In the case of thioglycosides with a bulky aglycone, the mesylation of C2–OH has a significant effect on the stereochemical outcome of the oxidation, affording the usually less favoured RS sulfoxide as a single diastereoisomer. The absolute configuration of the final sulfinyl glycosides was ascertained by NMR analysis and corroborated by X-ray crystallography.

Graphical abstract: Studies on the diastereoselective oxidation of 1-thio-β-d-glucopyranosides: synthesis of the usually less favoured RS sulfoxide as a single diastereoisomer

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Supplementary files

Article information


Submitted
23 Sep 2014
Accepted
25 Nov 2014
First published
28 Nov 2014

Org. Biomol. Chem., 2015,13, 1904-1914
Article type
Paper
Author version available

Studies on the diastereoselective oxidation of 1-thio-β-D-glucopyranosides: synthesis of the usually less favoured RS sulfoxide as a single diastereoisomer

J. F. Moya-López, E. Elhalem, R. Recio, E. Álvarez, I. Fernández and N. Khiar, Org. Biomol. Chem., 2015, 13, 1904 DOI: 10.1039/C4OB02030H

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