2-Cyclohept-1-enyl-butyric acid ethyl ester | 108071-14-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 2-Cyclohept-1-enyl-butyric acid ethyl ester
• CAS: 108071-14-3
• 化学式: C₁₃H₂₂O₂
• 分子量: 210.316
• InChiKey: SDJBYOMIGQPUSI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.47
• 重原子数：
  15.0
• 可旋转键数：
  4.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.77
• 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：

  2-Cyclohept-1-enyl-butyric acid ethyl ester 在 氢氧化钾 、 lithium aluminium tetrahydride 、 Oxone 、 碳酸氢钠 作用下， 以 四氢呋喃 、 水 、 二甲基亚砜 、 丙酮 为溶剂， 反应 2.3h， 生成 3α-ethyl-8aαH-octahydro-cyclohepta[b]furan-3aα-ol
  参考文献：
  名称：

  Bicyclic β-Hydroxytetrahydrofurans as Precursors of Medium Ring Keto-Lactones

  摘要：

  The reaction of a series of cis-fused bicyclic beta-hydroxytetrahydrofurans with ruthenium tetraoxide, generated in situ from ruthenium trichloride and sodium periodate, afforded 9- and 10-membered keto-lactones in moderate to good yields, in a clean and straightforward fashion. The starting beta-hydroxyethers were obtained from the corresponding 3-alkenols by two alternative procedures, depending on their pattern of substitution: (a) epoxidation by dimethyldioxirane, followed by base-catalyzed cyclization of the resulting epoxyalcohol, and (b) thallium trinitrate-mediated cyclization of the 3-alkenols, a method already described by our group.

  DOI：

  10.1021/jo0626109
• 作为产物：
  描述：

  环庚酮 在 吡啶 、 氯化亚砜 、 碘 、 锌 作用下， 以 乙醚 、 苯 为溶剂， 生成 2-Cyclohept-1-enyl-butyric acid ethyl ester
  参考文献：
  名称：

  Bicyclic β-Hydroxytetrahydrofurans as Precursors of Medium Ring Keto-Lactones

  摘要：

  The reaction of a series of cis-fused bicyclic beta-hydroxytetrahydrofurans with ruthenium tetraoxide, generated in situ from ruthenium trichloride and sodium periodate, afforded 9- and 10-membered keto-lactones in moderate to good yields, in a clean and straightforward fashion. The starting beta-hydroxyethers were obtained from the corresponding 3-alkenols by two alternative procedures, depending on their pattern of substitution: (a) epoxidation by dimethyldioxirane, followed by base-catalyzed cyclization of the resulting epoxyalcohol, and (b) thallium trinitrate-mediated cyclization of the 3-alkenols, a method already described by our group.

  DOI：

  10.1021/jo0626109

文献信息

• Highly regioselective α-alkylation of γ-acetoxy-α, β-enoates by reduction–alkylation with lithium dibutylcuprate–alkyl halides: application to the synthesis of spirovetivanes
  作者：Toshiro Ibuka、Takeshi Aoyagi、Fumio Yoneda

  DOI：10.1039/c39850001452

  日期：——

  Reaction of γ-acetoxy-α, β-enoates with lithium dibutylcuprate followed by alkyl halides results in the predominant or exclusive formation of α-alkyl-β, γ-enoates in high yields under mild conditions; a synthetic route to (±)-α-vetispirene is also presented.

  γ-乙酰氧基-α - β-烯酸酯与二丁基铜酸锂反应，然后与烷基卤反应，导致在温和条件下以高收率主要或独家形成α-烷基-β-γ-烯酸酯。还提出了合成（±）-α- vetispirene的途径。