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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19 Oct 1983TL;DR: In this article, a process for the conversion of an aldose or a substituted aldoses to a ketose, or substituted ketoses, in an aqueous reaction mixture containing a halide of a metal from Group ll of the Periodic Table at a concentration in the range 0.5 molar to saturation is described.
Abstract: A process for the conversion of an aldose, or a substituted aldose, to a ketose, or a substituted ketose, in an aqueous reaction mixture containing a halide of a metal from Group ll of the Periodic Table at a concentration in the range 0.5 molar to saturation. The process is particularly suitable for converting glucose into fructose. The preferred metal halide is calcium chloride.
7 citations
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TL;DR: Synthese a partir de didesoxy-5,6 Oisopropylidene-1,2 O-methyl-3 nitro-6 α-D-xylo-hexeno-5furanose et de phenylphosphine
7 citations
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05 Dec 1978
TL;DR: In this article, the epimerization of aldoses is effected by heating an aqueous aldose in the presence of a molybdenic acid catalyst supported on anion exchange fibers.
Abstract: PURPOSE: The epimerization of aldoses is effected by heating an aqueous aldose in the presence of a molybdenic acid catalyst supported on anion exchange fibers, thus producing epimerized isomers with industrial advantage because the catalyst- removing process becomes unncessary and the catalyst activity is maintained. CONSTITUTION: An aldose as D-xylose is heated at a temperature higher than 70°C in the presence of a catalyst of (C) molybdenic acid supported on (B) anion exchange fibers, which are prepared by impregnating polyethylene fibers with vinylbenzyl chloride and divinylbenzene, polymerizing them and introducing tertiary amino groups to give the objective epimerized isomer. For example, D-xylose is continuously made to react, thus giving D-lyxose. The concentration of the aldose used is 40W80% and the anion exchange fibers preferably have less than 200 micron diameter and 3W5000 aspect ratio. COPYRIGHT: (C)1980,JPO&Japio
7 citations