Topic
Aldose
About: Aldose is a research topic. Over the lifetime, 1270 publications have been published within this topic receiving 27197 citations. The topic is also known as: aldoses.
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Patent•
10 Jun 2015
TL;DR: In this paper, a synthesis method of saponin and a method to construct glycosidic bond in Saponin is presented. But the method is not suitable for the solvability of a large amount of aldose or ketose.
Abstract: The invention belongs to the field of organic synthesis, and involves a synthesis method of saponin, and in particular a method to construct glycosidic bond in saponin. The method includes the following steps: directly reacting an excessive amount of aldose or ketose with aglycone in an appropriate organic solvent under the action of an acid catalyst and reflux temperature of 30 DEG C to obtain the target product of saponin.
3 citations
TL;DR: The structure of glycolaldehyde and glyceraldehyde was determined using gas chromatography using mass spectrometry as mentioned in this paper, and the mass spectra showed two dimeric forms for TMS-glycolaldehyde, one dimeric form for GCL-GCL and one dimric form for TG-GLC.
Abstract: The structure of glycolaldehyde and glyceraldehyde was determined using gas chromatography — mass spectrometry. Glycolaldehyde and glyceraldehyde, mixed with lactic acid, 2-furoic acid, furoin, xylose and ascorbic acid were separated on a capillary column coated with SE-52 as trimethylsilyl derivatives. The mass spectra show two dimeric forms for TMS-glycolaldehyde and one dimeric form for TMS-glyceraldehyde.
3 citations
Patent•
09 Mar 2007
TL;DR: In this paper, a non-reducing disaccharide can be produced in high efficiency from aldose derivatives having the same structure and containing freed anomer hydroxy group with each other in the presence of an activation agent.
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a glycoside in high efficiency by reacting an aldose derivative having freed anomer hydroxy group with an alcohol in the presence of an activation agent and a method for efficiently producing a non-reducing disaccharide by reacting aldose derivatives having the same structure and containing freed anomer hydroxy group with each other in the presence of an activation agent. SOLUTION: A glycoside is produced in high efficiency under a mild condition by reacting an aldose derivative having a freed anomer hydroxy group with an alcohol under microwave radiation using only several mol% to several tens mol% of an activation agent such as bismuth(III) triflate. A non-reducing disaccharide can be produced in high efficiency from aldose derivatives having the same structure and containing freed anomer hydroxy group. COPYRIGHT: (C)2008,JPO&INPIT
3 citations
TL;DR: Examination of the NMR proton signals arising from C-1 of D, as it is formed from D in deuterium oxide via the phosphoglucose isomerase reaction verify that the transformation occurs by a combination of C-2 proton exchange with solvent, and intramolecular hydride transfer, and indicates the stereospecific formation of D from D during the interconversion.
3 citations
Patent•
30 Jul 2001
TL;DR: In this paper, a process for producing hydrazinomonosaccharide derivatives and use of hydrazines in determining the structures of aldose and ketose maccharides located at the reducing ends of saccharides is described.
Abstract: A process for producing hydrazinomonosaccharide derivatives and use of hydrazines in determining the structures of aldose and ketose monosaccharides located at the reducing ends of saccharides.
3 citations