1,3,4-tri-O-acetyl-2,5-di-O-methyl-D-arabinitol | 100758-68-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 1,3,4-tri-O-acetyl-2,5-di-O-methyl-D-arabinitol
• 英文别名: 1,3,4-tri-O-acetyl-2,5-di-O-methylarabinitol
• CAS: 100758-68-7
• 化学式: C₁₃H₂₂O₈
• 分子量: 306.313
• InChiKey: POQJQMANZZFNEP-UPJWGTAASA-N

物化性质

• 沸点：
  361.7±42.0 °C(Predicted)
• 密度：
  1.145±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.07
• 重原子数：
  21.0
• 可旋转键数：
  9.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  97.36
• 氢给体数：
  0.0
• 氢受体数：
  8.0

反应信息

• 作为产物：
  描述：

  乙酸酐 、 3-O-(β-D-galactopyranosyl)-D-arabinose 、 碘甲烷 在 sodium tetrahydroborate 、 高氯酸 、 三甲基碘化亚砜 、 三氟乙酸 作用下， 以 二甲基亚砜 为溶剂， 生成 乙基甲基亚砜 、 1,3,4-tri-O-acetyl-2,5-di-O-methyl-D-arabinitol 、 1,5-di-O-acetyl-2,3,4,6-tetra-O-methyl-D-galactitol 、 1,3,5-tri-O-acetyl-2,4-di-O-methyl-D-arabinitol 、 三甲基碘化亚砜
  参考文献：
  名称：

  An improved procedure for the methylation analysis of oligosaccharides and polysaccharides

  摘要：

  An improved procedure for the methylation analysis of oligosaccharides and polysaccharides is described. Steps in the procedure were examined and optimised for quantitative recovery and speed. Methylation was shown to be complete by using [14C]methyl iodide. All operations were performed in the same tube and the need to concentrate solutions containing acetylated alditols of methylated sugars was eliminated, thus minimising losses due to volatilization. The method is convenient, gives high recoveries of acetylated alditols of methylated sugars, and allows analysis of the glycosyl linkages of oligo- or poly-saccharides to be completed within a working day. A wide range of oligo- and poly-saccharides were methylated by this procedure.

  DOI：

  10.1016/0008-6215(84)85106-x