NMR spectroscopy of polysaccharide derivatives and their molecular structure. Review

Autor:	T.I. Usmanov
Rok vydání:	1991
Předmět:	NMR spectra database Molecular mass Chemistry Computational chemistry Phase (matter) Reagent General Engineering Analytical chemistry Molecule Reactivity (chemistry) Nuclear magnetic resonance spectroscopy Carbon-13 NMR
Zdroj:	Polymer Science U.S.S.R.. 33:611-635
ISSN:	0032-3950
DOI:	10.1016/0032-3950(91)90116-8
Popis:	The results of experimental investigations to evaluate the reactivity of the hydroxyl groups and the structure of the products in chemical conversions of the polysaccharide chain using high-resolution NMR spectroscopy in its different variants (1H and 13C NMR in solution and 13C NMR in the solid phase) are reviewed. Special attention is paid to the problems of obtaining quantitative information on the distribution of the substituents in the elementary unit and developing the methodological approaches for identification of the NMR spectra of polysaccharide ethers and esters based on model compounds, low molecular mass analogues and blocking the free hydroxyl groups by deuterized reagents. Some ideas are put forward on the prospects for evaluating the changes in structure during esterification of polysaccharides by the 13C NMR method in the solid phase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::20e4a78e29c2027a0ef63eec0092c33a https://doi.org/10.1016/0032-3950(91)90116-8 Zobrazit plný text záznamu