(4R,5R,2E)-ethyl 4,5-isopropylidenedioxyundec-2-enoate | 1132793-37-3

• 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: (4R,5R,2E)-ethyl 4,5-isopropylidenedioxyundec-2-enoate
• 英文别名: ethyl (E)-3-[(4R,5R)-5-hexyl-2,2-dimethyl-1,3-dioxolan-4-yl]prop-2-enoate
• CAS: 1132793-37-3
• 化学式: C₁₆H₂₈O₄
• 分子量: 284.396
• InChiKey: MRIWNNNEOWVFEL-MRUDHYOASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  20
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (4R,5R,2E)-ethyl 4,5-isopropylidenedioxyundec-2-enoate 在 二异丁基氢化铝 、 水 、 rochelle salt 作用下， 以 正己烷 、 二氯甲烷 为溶剂， 反应 6.0h， 以97%的产率得到(4R,5R,2E)-4,5-isopropylidenedioxyundec-2-ene-1-ol
  参考文献：
  名称：

  Synthesis of β,γ-disubstituted-γ-lactones through a Johnson–Claisen rearrangement: a short route to xylobovide, nor-canadensolide, canadensolide, sporothriolide and santolinolide

  摘要：

  The Johnson-Claisen rearrangement of allyl alcohols with chiral vicinal diol functionality was employed to access chiral beta,gamma-disubstituted-gamma-lactones in high enantio- and diastereoselectivity. These were efficiently converted into nor-canadensolide, the advanced gamma-(lactone-lactol) intermediate for xylobovide, canadensolide and sporothriolide and the lactone moiety of the santolinolides. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.11.018
• 作为产物：
  描述：

  [(4S,5R)-5-n-hexyl-2,2-dimethyl-[1,3]-dioxolan-4-yl]carbaldehyde 、 乙氧甲酰基亚甲基三苯基膦 以 四氢呋喃 为溶剂， 反应 12.0h， 以3 g的产率得到(4R,5R,2E)-ethyl 4,5-isopropylidenedioxyundec-2-enoate
  参考文献：
  名称：

  Synthesis of β,γ-disubstituted-γ-lactones through a Johnson–Claisen rearrangement: a short route to xylobovide, nor-canadensolide, canadensolide, sporothriolide and santolinolide

  摘要：

  The Johnson-Claisen rearrangement of allyl alcohols with chiral vicinal diol functionality was employed to access chiral beta,gamma-disubstituted-gamma-lactones in high enantio- and diastereoselectivity. These were efficiently converted into nor-canadensolide, the advanced gamma-(lactone-lactol) intermediate for xylobovide, canadensolide and sporothriolide and the lactone moiety of the santolinolides. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.11.018

文献信息

• Synthesis of β,γ-disubstituted-γ-lactones through a Johnson–Claisen rearrangement: a short route to xylobovide, nor-canadensolide, canadensolide, sporothriolide and santolinolide
  作者：Rodney A. Fernandes、Arun B. Ingle、Vijay P. Chavan

  DOI：10.1016/j.tetasy.2009.11.018

  日期：2009.12

  The Johnson-Claisen rearrangement of allyl alcohols with chiral vicinal diol functionality was employed to access chiral beta,gamma-disubstituted-gamma-lactones in high enantio- and diastereoselectivity. These were efficiently converted into nor-canadensolide, the advanced gamma-(lactone-lactol) intermediate for xylobovide, canadensolide and sporothriolide and the lactone moiety of the santolinolides. (C) 2009 Elsevier Ltd. All rights reserved.