| Structural identification of isomeric O-trimethylsilyl derivatives of some hexuronic acids. | |
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MedLine Citation:
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PMID: 902276 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The structures of the isomeric products obtained on trimethylsilylation of naturally occurring hexuronic acids and their sodium salts and lactones have been established by the application of n.m.r. (for anomeric configuration) and mass spectrometry (for ring size). The equilibria of some of the hexuronic acids in methyl sulphoxide involved a larger proportion of furanoid forms than those in water or pyridine. The proportion of furanoses was also increased by the addition of hexamethyldisilazane. Kinetic evidence indicated that two molecules of each hexuronic acid interacted autocatalytically during mutarotation. |
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Authors:
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J F Kennedy; S M Robertson; M Stacey |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Carbohydrate research Volume: 57 ISSN: 0008-6215 ISO Abbreviation: Carbohydr. Res. Publication Date: 1977 Aug |
Date Detail:
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Created Date: 1977-11-25 Completed Date: 1977-11-25 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0043535 Medline TA: Carbohydr Res Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 205-14 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Hexuronic Acids
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analysis* Isomerism Magnetic Resonance Spectroscopy Mass Spectrometry Molecular Conformation Structure-Activity Relationship Trimethylsilyl Compounds Uronic Acids / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Hexuronic Acids; 0/Trimethylsilyl Compounds; 0/Uronic Acids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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