anti-1,4-bis(3,5-difluorophenyl)-5-ethyl-6-heptene-1,4-diol

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: anti-1,4-bis(3,5-difluorophenyl)-5-ethyl-6-heptene-1,4-diol
• 英文别名: (1R,4S,5S)-1,4-bis(3,5-difluorophenyl)-5-ethylhept-6-ene-1,4-diol
• 化学式: C₂₁H₂₂F₄O₂
• 分子量: 382.398
• InChiKey: IUZUDTVHKSSYMG-IFZYUDKTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  27
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  正戊基溴化镁 、 1,4-bis(3,5-difluorophenyl)-1,4-butanedione 在 二氯二茂锆 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 5.5h， 以16%的产率得到1,4-bis(3,5-difluorophenyl)-1,4-butanediol
  参考文献：
  名称：

  Transformation of Zirconocene−Olefin Complexes into Zirconocene Allyl Hydride and Their Use as Dual Nucleophilic Reagents:  Reactions with Acid Chloride and 1,4-Diketone

  摘要：

  Zirconocene-olefin complexes Cp2Zr(H2C=CHR), prepared in benzene-THF at 0 degreesC, react with acid chlorides to provide homoallylic alcohols. The key is an equilibrium between the zirconocene-olefin complexes and the corresponding zirconocene allyl hydride complexes via allylic C-H bond cleavage of the coordinating alkenes. Furthermore, the zirconocene-olefin complexes are also available for the reaction with 1,4-diketone to afford anti-1,4-diols with excellent diastereoselectivity. Thus, Cp2Zr(H2C CHR) serves as a donor of both hydride and an allylic group. These reactions also proceed efficiently by using zirconocene-olefin complexes, derived from Cp2ZrCl2, Mg metal, and 1-alkenes.

  DOI：

  10.1021/ja049184y

文献信息

• Transformation of Zirconocene−Olefin Complexes into Zirconocene Allyl Hydride and Their Use as Dual Nucleophilic Reagents:  Reactions with Acid Chloride and 1,4-Diketone
  作者：Kazuya Fujita、Hideki Yorimitsu、Hiroshi Shinokubo、Koichiro Oshima

  DOI：10.1021/ja049184y

  日期：2004.6.1

  Zirconocene-olefin complexes Cp2Zr(H2C=CHR), prepared in benzene-THF at 0 degreesC, react with acid chlorides to provide homoallylic alcohols. The key is an equilibrium between the zirconocene-olefin complexes and the corresponding zirconocene allyl hydride complexes via allylic C-H bond cleavage of the coordinating alkenes. Furthermore, the zirconocene-olefin complexes are also available for the reaction with 1,4-diketone to afford anti-1,4-diols with excellent diastereoselectivity. Thus, Cp2Zr(H2C CHR) serves as a donor of both hydride and an allylic group. These reactions also proceed efficiently by using zirconocene-olefin complexes, derived from Cp2ZrCl2, Mg metal, and 1-alkenes.