D-<2-13C>xylose | 131771-69-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: D-<2-13C>xylose
• 英文别名: Xylose-2-13C；(2R,3S,4R)-2,3,4,5-tetrahydroxy(213C)pentanal
• CAS: 131771-69-2
• 化学式: C₅H₁₀O₅
• 分子量: 151.12
• InChiKey: PYMYPHUHKUWMLA-AXXUHBFTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -2.3
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  98
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  D-核糖-1-13C 在 624>-->resin 作用下， 以 水 为溶剂， 反应 6.5h， 以0.16%的产率得到D-<2-13C>xylose
  参考文献：
  名称：

  Paramolybdate anion-exchange resin, an improved catalyst for the C-1–C-2 rearrangement and 2-epimerization of aldoses

  摘要：

  Aqueous solutions of molybdate at 90 degrees bring about the inversion of the C-1-C-2 fragment of aldoses having four or more carbon atoms, generating thermodynamically equilibrated mixtures of the starting aldose and its 2-epimer. In some cases, notably with the aldopentoses, substantial proportions of the 3-epimers are produced, as well as 2-epimers that have not undergone inversion of the C-1-C-2 fragment. These side-reactions can be controlled by using the paramolybdate form of an anion-exchange resin (AG MP-1) together with the formate form of the same resin. The latter acts to scavenge unbound molybdate and paramolybdate anions that appear to be responsible for the side reactions.

  DOI：

  10.1016/s0008-6215(00)90268-4

文献信息

• Paramolybdate anion-exchange resin, an improved catalyst for the C-1–C-2 rearrangement and 2-epimerization of aldoses
  作者：Edward L. Clark、Michael L. Hayes、Robert Barker

  DOI：10.1016/s0008-6215(00)90268-4

  日期：1986.10

  Aqueous solutions of molybdate at 90 degrees bring about the inversion of the C-1-C-2 fragment of aldoses having four or more carbon atoms, generating thermodynamically equilibrated mixtures of the starting aldose and its 2-epimer. In some cases, notably with the aldopentoses, substantial proportions of the 3-epimers are produced, as well as 2-epimers that have not undergone inversion of the C-1-C-2 fragment. These side-reactions can be controlled by using the paramolybdate form of an anion-exchange resin (AG MP-1) together with the formate form of the same resin. The latter acts to scavenge unbound molybdate and paramolybdate anions that appear to be responsible for the side reactions.