2,6-dimethylnona-1,8-dien-5-one | 461663-24-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,6-dimethylnona-1,8-dien-5-one
• CAS: 461663-24-1
• 化学式: C₁₁H₁₈O
• 分子量: 166.263
• InChiKey: ROIBQZSZFNTYSP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  12
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,6-dimethylnona-1,8-dien-5-one 在 吡啶 、 lithium aluminium tetrahydride 、 Grubbs catalyst first generation 、 氯化亚砜 、 jones reagent 、 18-冠醚-6 、 (S)-(-)- α-甲基苄胺 、 potassium tert-butylate 、 potassium carbonate 、 对甲苯磺酸 、 magnesium 、 N,N-二甲基甲酰胺 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 二氯甲烷 、 丙酮 、 苯 为溶剂， 反应 199.5h， 生成 (1S,3R,4S,7R,8S)-8-acetyl-3,4-epoxy-1,4-dimethylbicyclo[5.3.0]decane
  参考文献：
  名称：

  Total Synthesis and Absolute Configuration of Liverwort Diterpenes, (−)-13(15)E,16E-3β,4β-Epoxy-18-hydroxysphenoloba-13(15),16-diene and (−)-13(15)Z,16E-3β,4β-Epoxy-18-hydroxysphenoloba-13(15),16-diene, by Use of the Ring Closing Metathesis Reaction Applied to Seven-Membered Carbocycles with a Trisubstituted Double Bond

  摘要：

  Seven-membered cyclic compounds possessing trisubstituted double bonds have been effectively constructed employing the Grubbs catalyst to effect olefin metathesis. The keto ester does not undergo cyclization; however, alcohols protected by the silyl groups smoothly cyclized into seven-membered compounds. The product was successfully converted to (-)-13(15)E,16E-3P,4P-epoxy18-hydroxysphenoloba-13(15),16-diene and (-)-13(15)Z,16E-3beta,4beta-epoxy-18-hydroxysphenoloba-13(15),16-diene, liverwort diterpenes isolated from Anastrophyllum auritum to establish the absolute configuration.

  DOI：

  10.1021/jo020287d
• 作为产物：
  描述：

  ethyl 2-allyl-2,6-dimethyl-3-oxo-6-heptenoate 在 水 、 lithium chloride 作用下， 以 二甲基亚砜 为溶剂， 以64%的产率得到2,6-dimethylnona-1,8-dien-5-one
  参考文献：
  名称：

  Total Synthesis and Absolute Configuration of Liverwort Diterpenes, (−)-13(15)E,16E-3β,4β-Epoxy-18-hydroxysphenoloba-13(15),16-diene and (−)-13(15)Z,16E-3β,4β-Epoxy-18-hydroxysphenoloba-13(15),16-diene, by Use of the Ring Closing Metathesis Reaction Applied to Seven-Membered Carbocycles with a Trisubstituted Double Bond

  摘要：

  Seven-membered cyclic compounds possessing trisubstituted double bonds have been effectively constructed employing the Grubbs catalyst to effect olefin metathesis. The keto ester does not undergo cyclization; however, alcohols protected by the silyl groups smoothly cyclized into seven-membered compounds. The product was successfully converted to (-)-13(15)E,16E-3P,4P-epoxy18-hydroxysphenoloba-13(15),16-diene and (-)-13(15)Z,16E-3beta,4beta-epoxy-18-hydroxysphenoloba-13(15),16-diene, liverwort diterpenes isolated from Anastrophyllum auritum to establish the absolute configuration.

  DOI：

  10.1021/jo020287d