4-Methyl-1-(phenylmethoxy)-3-penten-2-yl 3-oxobutanoate | 160509-06-8

• 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: 4-Methyl-1-(phenylmethoxy)-3-penten-2-yl 3-oxobutanoate
• 英文别名: (4-Methyl-1-phenylmethoxypent-3-en-2-yl) 3-oxobutanoate
• CAS: 160509-06-8
• 化学式: C₁₇H₂₂O₄
• 分子量: 290.359
• InChiKey: PQFVLEJQGHYSMJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  21
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-Methyl-1-(phenylmethoxy)-3-penten-2-yl 3-oxobutanoate 在 lithium diisopropyl amide 作用下， 生成 (E)-4,4-Dimethyl-7-(phenylmethoxy)-5-hepten-2-one
  参考文献：
  名称：

  Intramolecular C-H Insertion by an Alkylidene Carbene: Diastereoselective Synthesis of a Taxol A Ring Synthon

  摘要：

  The first stage in a proposed total synthesis of the clinically effective anticancer agent taxol 1 is reported. A key step in this synthesis is the development of a new procedure for the generation and cyclization of the alkylidene carbene derived from ketone 9, to give cyclopentene 10 (formation of three new carbon-carbon bonds) in 72% yield. Ozonolysis of 10 followed by aldol condensation furnished the crystalline cyclohexenone 4.

  DOI：

  10.1021/jo00099a035
• 作为产物：
  描述：

  2-苄氧基乙醇 在 4-二甲氨基吡啶 、 phosphorus pentoxide 、 magnesium 、 二甲基亚砜 、 三乙胺 作用下， 以 乙醚 、 丙酮 为溶剂， 反应 23.0h， 生成 4-Methyl-1-(phenylmethoxy)-3-penten-2-yl 3-oxobutanoate
  参考文献：
  名称：

  Intramolecular C-H Insertion by an Alkylidene Carbene: Diastereoselective Synthesis of a Taxol A Ring Synthon

  摘要：

  The first stage in a proposed total synthesis of the clinically effective anticancer agent taxol 1 is reported. A key step in this synthesis is the development of a new procedure for the generation and cyclization of the alkylidene carbene derived from ketone 9, to give cyclopentene 10 (formation of three new carbon-carbon bonds) in 72% yield. Ozonolysis of 10 followed by aldol condensation furnished the crystalline cyclohexenone 4.

  DOI：

  10.1021/jo00099a035