The formation of hex-5-enopyranosides and their selective hydrolysis in methylated polysaccharides
- 1 March 1978
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 56 (5) , 680-684
- https://doi.org/10.1139/v78-111
Abstract
The introduction of hex-5-enopyranoside residues into methylated acidic polysaccharides is effected by reduction of uronic acid residues, followed by reaction with triphenyl phosphite methiodide, and dehydroiodination. The selective hydrolysis of hex-5-enopyranosidic linkages with characterization of the 6-deoxyglycos-5-uloses thus formed and location of the aglyconic hydroxyl groups thus exposed has been demonstrated for methylated derivatives of birch xylan and gum arabic. The reaction sequence provides a new method for linkage analysis of acidic polysaccharides.Keywords
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