ethyl 3,6-anhydro-D-galactonate | 161085-35-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• 英文名称: ethyl 3,6-anhydro-D-galactonate
• 英文别名: ethyl (2R)-2-[(2S,3S,4R)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyacetate
• CAS: 161085-35-4
• 化学式: C₈H₁₄O₆
• 分子量: 206.196
• InChiKey: KJXXISZHOROFNR-UCROKIRRSA-N

物化性质

• 沸点：
  389.8±37.0 °C(predicted)
• 密度：
  1.438±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.1
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  96.2
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  ethyl 3,6-anhydro-D-galactonate 在 sodium tetrahydroborate 作用下， 以 乙醇 为溶剂， 以76%的产率得到1,4-anhydro-DL-galactitol
  参考文献：
  名称：

  Enantiomerically pure, highly functionalized tetrahydrofurans from simple carbohydrate precursors

  摘要：

  6-Bromo-6-deoxy-1,4-aldonolactones and 6-bromo-6-deoxy-alditols with D-galacto-, D-altro-, D-manno- and D-ido-configuration were selectively converted into hydroxylated tetrahydrofuran derivatives by simple heating in water. The 6-bromo-6-deoxy-D-altritol (10) and 6-bromo-6-deoxy-D-iditol (25) reacted even at room temperature. Likewise, the 6-bromo-2,6-dideoxy-aldonolactones with D-arabino- (29) and D-lyxo-configuration (31) gave the corresponding 2-deoxy-3,6-anhydrides, when heated in water. The rate of formation of the furan ring by intramolecular nucleophilic substitution was determined by the conformation of the bromopolyols in water.

  DOI：

  10.1016/s0040-4020(01)89337-6
• 作为产物：
  描述：

  D-半乳糖酸-1,4-内酯 在 氢溴酸 、 乙酰氯 作用下， 以 水 为溶剂， 反应 6.0h， 生成 ethyl 3,6-anhydro-D-galactonate
  参考文献：
  名称：

  Enantiomerically pure, highly functionalized tetrahydrofurans from simple carbohydrate precursors

  摘要：

  6-Bromo-6-deoxy-1,4-aldonolactones and 6-bromo-6-deoxy-alditols with D-galacto-, D-altro-, D-manno- and D-ido-configuration were selectively converted into hydroxylated tetrahydrofuran derivatives by simple heating in water. The 6-bromo-6-deoxy-D-altritol (10) and 6-bromo-6-deoxy-D-iditol (25) reacted even at room temperature. Likewise, the 6-bromo-2,6-dideoxy-aldonolactones with D-arabino- (29) and D-lyxo-configuration (31) gave the corresponding 2-deoxy-3,6-anhydrides, when heated in water. The rate of formation of the furan ring by intramolecular nucleophilic substitution was determined by the conformation of the bromopolyols in water.

  DOI：

  10.1016/s0040-4020(01)89337-6

文献信息

• Enantiomerically pure, highly functionalized tetrahydrofurans from simple carbohydrate precursors
  作者：Inge Lundt、Holger Frank

  DOI：10.1016/s0040-4020(01)89337-6

  日期：1994.1

  6-Bromo-6-deoxy-1,4-aldonolactones and 6-bromo-6-deoxy-alditols with D-galacto-, D-altro-, D-manno- and D-ido-configuration were selectively converted into hydroxylated tetrahydrofuran derivatives by simple heating in water. The 6-bromo-6-deoxy-D-altritol (10) and 6-bromo-6-deoxy-D-iditol (25) reacted even at room temperature. Likewise, the 6-bromo-2,6-dideoxy-aldonolactones with D-arabino- (29) and D-lyxo-configuration (31) gave the corresponding 2-deoxy-3,6-anhydrides, when heated in water. The rate of formation of the furan ring by intramolecular nucleophilic substitution was determined by the conformation of the bromopolyols in water.