(2R,4S)-1,2-epoxy-4-nonanol | 135943-89-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (2R,4S)-1,2-epoxy-4-nonanol
• 英文别名: (2S)-1-[(2R)-oxiran-2-yl]heptan-2-ol
• CAS: 135943-89-4
• 化学式: C₉H₁₈O₂
• 分子量: 158.241
• InChiKey: ZCRWZHCZPMNQEJ-DTWKUNHWSA-N

物化性质

• 沸点：
  245.4±8.0 °C(Predicted)
• 密度：
  0.975±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  32.8
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (2R,4S)-1,2-epoxy-4-nonanol 、 alkaline earth salt of/the/ methylsulfuric acid 以 四氢呋喃 为溶剂， 以84%的产率得到(3S,5S)-3,5-decanediol
  参考文献：
  名称：

  Optically pure 1,3-diols from (2R,4R)- and (2S,4S)-1,2:4,5-diepoxypentane

  摘要：

  Optically pure (> 97% ee) (2R,4R)-1,2:4,5-diepoxypentane (1) and its enantiomer can be prepared in three steps from 2,4-pentanedione without the need for chromatographic purification. Diepoxide 1 is an efficient precursor to a wide variety of optically pure syn and anti 1,3-diols. Reaction with excess nucleophile gives symmetric[GRAPHICS]anti 1,3-diols in good yield. Reaction with a slight excess of alkyllithium under Ganem's conditions gives the monoepoxides 5 in good yield. Addition of a second nucleophile to monoepoxide 5 gives asymmetric anti 1,3-diols. Mitsunobu inversion of monoepoxide 5 followed by addition of a second nucleophile gives syn 1,3-diols. Optically pure syn and anti 1,3-diols are available from diepoxide 1 in one to three steps and good overall yield.

  DOI：

  10.1021/jo00017a032
• 作为产物：
  描述：

  2,4-戊二酮,1,5-二氯 在 Ru2Cl4{2,2'-bis(diphenylphosphino)-1,1'-binaphthyl}2*N(C2H5)3 氢氧化钾 、 三氟化硼乙醚 、 氢气 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 为溶剂， -78.0~102.0 ℃ 、8.62 MPa 条件下， 反应 4.17h， 生成 (2R,4S)-1,2-epoxy-4-nonanol
  参考文献：
  名称：

  Optically pure 1,3-diols from (2R,4R)- and (2S,4S)-1,2:4,5-diepoxypentane

  摘要：

  Optically pure (> 97% ee) (2R,4R)-1,2:4,5-diepoxypentane (1) and its enantiomer can be prepared in three steps from 2,4-pentanedione without the need for chromatographic purification. Diepoxide 1 is an efficient precursor to a wide variety of optically pure syn and anti 1,3-diols. Reaction with excess nucleophile gives symmetric[GRAPHICS]anti 1,3-diols in good yield. Reaction with a slight excess of alkyllithium under Ganem's conditions gives the monoepoxides 5 in good yield. Addition of a second nucleophile to monoepoxide 5 gives asymmetric anti 1,3-diols. Mitsunobu inversion of monoepoxide 5 followed by addition of a second nucleophile gives syn 1,3-diols. Optically pure syn and anti 1,3-diols are available from diepoxide 1 in one to three steps and good overall yield.

  DOI：

  10.1021/jo00017a032