4,4-dimethyl-5-nonyl-2-(propan-2-ylidene)dihydrofuran-3(2H)-one | 1396787-30-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: 4,4-dimethyl-5-nonyl-2-(propan-2-ylidene)dihydrofuran-3(2H)-one
• CAS: 1396787-30-6
• 化学式: C₁₈H₃₂O₂
• 分子量: 280.451
• InChiKey: BRSNTQIADSPUQU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.42
• 重原子数：
  20.0
• 可旋转键数：
  8.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  4,4-dimethyl-5-nonyl-2-(propan-2-ylidene)dihydrofuran-3(2H)-one 在 碳酸氢钠 、 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 反应 0.25h， 以81%的产率得到2-benzyl-1-oxaspiro[3.5]nonan-3-one
  参考文献：
  名称：

  Method for the Efficient Synthesis of Highly-Substituted Oxetan- and Azetidin-, Dihydrofuran- and Pyrrolidin-3-ones and Its Application to the Synthesis of (±)-Pseudodeflectusin

  摘要：

  Highly substituted four- and five-membered heterocycles were prepared starting with O,P- and N,P-acetals by using a one-pot method involving base induced cyclization and a Horner-Wadsworth-Emmons (HWE) olefination reaction. Divergent synthesis of various heterocycles was achieved by using this method and transformations of the alkenyl group in the products of these processes were exemplified. Finally, a short and efficient synthesis of (+/-)-pseudodeflectusin based on the new methodology was achieved.

  DOI：

  10.1021/ol302096j
• 作为产物：
  描述：

  methyl 3-[(dimethoxyphosphoryl)methoxy]-2,2-dimethyldodecanoate 、 丙酮 在 四甲基乙二胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 1.5h， 以63%的产率得到4,4-dimethyl-5-nonyl-2-(propan-2-ylidene)dihydrofuran-3(2H)-one
  参考文献：
  名称：

  Method for the Efficient Synthesis of Highly-Substituted Oxetan- and Azetidin-, Dihydrofuran- and Pyrrolidin-3-ones and Its Application to the Synthesis of (±)-Pseudodeflectusin

  摘要：

  Highly substituted four- and five-membered heterocycles were prepared starting with O,P- and N,P-acetals by using a one-pot method involving base induced cyclization and a Horner-Wadsworth-Emmons (HWE) olefination reaction. Divergent synthesis of various heterocycles was achieved by using this method and transformations of the alkenyl group in the products of these processes were exemplified. Finally, a short and efficient synthesis of (+/-)-pseudodeflectusin based on the new methodology was achieved.

  DOI：

  10.1021/ol302096j