Determination of 3-deoxy-D-erythro-hexosulose (3-deoxy-D-glucosone) and other degradation products of sugars by borohydride reduction and gas-liquid chromatography
作者:Ahmed A. El-Dash、John E. Hodge
DOI:10.1016/s0008-6215(00)80350-x
日期:1971.6
among other degradation products of sugars, by gas-liquid chromatography (g.l.c) of its pertrimethylsilyl (TMS) ethers, was not feasible because the multiplicity of tautomeric forms gave numerous peaks. However, borohydride reduction of the complex aldosulose gave only the two expected 3-deoxyhexitols, and these were readily separated from other reduced degradation products of sugars by g.l.c. of their
摘要由于其互变异构体形式多样,因此无法通过气-液相色谱法(glc)对糖的其他降解产物中的3-脱氧-D-赤型-己糖(1)进行定量分析。高峰。然而,复合醛糖的硼氢化物还原仅给出了两种预期的3-脱氧己糖醇,并且它们通过TMC醚的glc容易地与糖的其他还原的降解产物分离。在两根色谱柱上测定了糖的碱性降解和糖褐变反应可能产生的糖醇和糖基内酯(C-2-C-6)的TMS醚的相对保留时间(TR),为分析不稳定的降解产物的复杂混合物提供了一种方法从糖。TR vs. 醛醇和ω-脱氧醛醇为一组时,TMS醚的分子量是规则的,但是内部脱氧醛醇(链中具有亚甲基的醛醇)形成一个单独的基团,对于相同的分子量,TR值始终较大。糖对脱氧糖以及内酯对脱氧内酯显示出相应的关系。