Chitooligosaccharide-2,5-anhydro-d-mannonic Acid

Author： Salim Emil   Ailincai Daniela   Trombotto Stéphane  

Publisher： MDPI

E-ISSN： 1422-8599|2014|3|M832-M832

ISSN： 1422-8599

Source： Molbank, Vol.2014, Iss.3, 2014-08, pp. : M832-M832

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Abstract

Chitooligosaccharide with one 2,5-anhydro-d-mannofuranose unit at the reducing end (COSamf) was prepared by nitrous deamination of fully N-deacetylated chitosan. The oxidation of the amf-unit by chlorite sodium was achieved in high yield. The chemical structure of the targeted chitooligosaccharide-2,5-anhydro-d-mannonic acid with a degree of polymerization ~10 was fully characterized by NMR spectroscopy, MALDI-TOF mass spectrometry and size-exclusion chromatography. The success of this synthesis opens the way to a new generation of end-functionalized COS building blocks.

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