期刊
JOURNAL OF CARBOHYDRATE CHEMISTRY
卷 21, 期 6, 页码 513-520出版社
MARCEL DEKKER INC
DOI: 10.1081/CAR-120016850
关键词
cellulose; cellobiose; glucose; ozonation; ozone; bleaching; pulp; oxidation; reducing end; cellobionic acid; aldonic acid; NMR spectroscopy; 2D-NMR; chemical shift; HPLC; high pressure liquid chromatography
Mild ozonation of cellobiose in acetic acid almost exclusively favors oxidation of the reducing end, thus yielding 4-O-beta-D-glucopyranosyl-D-gluconic acid (cellobionic acid). This compound can be quantitatively separated from the substrate by preparative HPLC using acetonitrile/phosphate buffer on an aminopropyl silica column. The product was identified using one and two dimensional NMR techniques. C-13 and H-1 NMR chemical shifts are reported.
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