Sequential removal of monosaccharides from the reducing end of oligosaccharides. I. A reaction between hydrazine and sugars having a glycosidic substituent on a carbon atom adjacent to the carbonyl group
作者:Brad Bendiak、Mary Ellen Salyan、Mario Pantoja
DOI:10.1016/s0040-4039(00)75790-x
日期:1994.1
Hydrazine reacts smoothly with sugars having a glycosidic substituent when the glycosyl moiety is located on a carbon atom adjacent to an aldehyde or keto group, resulting in cleavage of the glycosidic linkage. In excess hydrazine, the released glycoside forms a hydrazone from which the reducingsugar may be recovered in high yields.
Stroh,H.-H. et al., Chemische Berichte, 1965, vol. 98, p. 1404 - 1410
作者:Stroh,H.-H. et al.
DOI:——
日期:——
Heterocyclic derivatives of sugars: an NMR study of the formation of 1-glycosyl-3,5-dimethyl-1 H-pyrazoles from hydrazones
作者:Warren C Kett、Michael Batley、John W Redmond
DOI:10.1016/s0008-6215(97)00007-4
日期:1997.4
Hydrazones were prepared by treatment of monosaccharides and disaccharides with hydrazine hydrate and converted in high yield to mixtures of 1-glycosyl-3,5-dimethyl-1 H-pyrazoles by reaction with pentan-2,4-dione (acetylacetone). The isomeric products were separated by HPLC and characterized by NMR spectroscopy. This represents a new approach to the introduction of a heteroaromatic label into sugars under nonacidic and nonreducing conditions, and it is a process likely to be especially useful for glycan hydrazones obtained from glycoproteins by hydrazinolysis or beta elimination in the presence of hydrazine. (C) 1997 Elsevier Science Ltd.
Kassab, E. A.; El-Hashash, M. A.; Soliman, F. M. A., Egyptian Journal of Chemistry, 2001, vol. 44, # 1-3, p. 169 - 179
作者:Kassab, E. A.、El-Hashash, M. A.、Soliman, F. M. A.、Ali, R. S.
DOI:——
日期:——
Mahmoud, Egyptian Journal of Chemistry, 2005, vol. 48, # 2, p. 251 - 257