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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 12 (1989), S. 455-458 
    ISSN: 0935-6304
    Keywords: Capillary gas chromatography, HRGC ; FTIR, GC-FTIR ; Disaccharides sequence ; Derivatization ; Carbohydrates, methanolysis ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Conversion of disaccharide reducing units into the corresponding methoximes followed by their reduction with NaBH4CN to the corresponding deoxy(methoxyamino)alditol glycosides (RCH2-NHOCH3) introduces a constitutional asymmetry in the sugar molecule. After methylation of the resulting compounds, cleavage of the glycosidic bonds is carried out by BF3- catalyzed methanolysis, affording permethylated O-methylglycosides and permethylated deoxy(methylmethoxyamino)alditols with a free -OH corresponding to the position of the glycosidic bond. Identification of the reducing moiety is achieved by GC-FTIR and computerized retrieval of library FTIR spectra.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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