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


Chitooligosaccharide-2,5-anhydro-D-mannonic Acid - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Ingénierie des Matériaux Polymères IMP, UMR CNRS 5223, Université Claude Bernard Lyon 1, Université de Lyon, Villeurbanne F-69622, France





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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. View Full-Text

Keywords: chitosan; chitooligosaccharide-2,5-anhydro-D-mannofuranose; 2,5-anhydro-D-mannonic acid; nitrous deamination; oxidation chitosan; chitooligosaccharide-2,5-anhydro-D-mannofuranose; 2,5-anhydro-D-mannonic acid; nitrous deamination; oxidation





Autor: Emil Salim, Daniela Ailincai and Stéphane Trombotto *

Fuente: http://mdpi.com/



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