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Chemistry LibreTexts

Glycoside

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When the hydroxy group on the hemiacetal carbon or on the hemiketal carbon in the molecule of a cyclic monosaccharide is replaced with an alkoxy group, the resultant compound is called a glycoside.

eg. 1:

glycoside1.png

eg. 2:

glycoside2.png

Some authors define glycosides as compounds obtained by replacing the hydroxy group on the hemiacetal carbon or on the hemiketal carbon with any ligand other than hydrogen and classify them as O-glycosides, N-glycosides, C-glycosides, etc. based on the element that attaches the ligand to the ring. IUPAC discourages this practice.

glycoside3.png

see also pyranoside, furanoside, glycosidic link


This page titled Glycoside is shared under a All Rights Reserved (used with permission) license and was authored, remixed, and/or curated by Gamini Gunawardena via source content that was edited to the style and standards of the LibreTexts platform.

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