作者:M. ABDEL AKEER、J. E. CADOTTE、R. MONTGOMERY、F. SMITH、J. W. VAN CLEVE、BERTHA A. LEWIS
DOI:10.1038/171474a0
日期:1953.3
WHEN a sugar glycoside is oxidized with periodate, the ring is severed and a dialdehyde is formed1. In the case of pyranosides, cleavage is accompanied by the elimination of the âCH(OH)â group at C3 as formic acid, whereas in the cleavage of pentofuranosides no formic acid is formed. The elucidation of this reaction by recognition of the dialdehydic character of the periodate oxidation product1 and an extensive study of the corresponding dibasic acids and their salts have enabled the ring structure of glycosides to be determined and have provided a simple method for correlating the structure of the various glycosides2.
当糖苷与高碘酸盐发生氧化反应时,环被切断并形成二醛1。对于吡喃糖苷,断裂伴随着C3处的―CH(OH)―基团以甲酸的形式消除,而在戊呋喃糖苷的断裂中则不形成甲酸。通过识别高碘酸盐氧化产物的二醛特征1以及对相应的二元酸及其盐类进行广泛研究,阐明了这一反应,从而确定了糖苷的环状结构,并提供了关联各种糖苷结构的简单方法2。