1-(6-oxocyclohex-1-enyl)penta-1,3-dienylcarbamic acid tert-butyl ester | 905852-96-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-(6-oxocyclohex-1-enyl)penta-1,3-dienylcarbamic acid tert-butyl ester
• 英文别名: tert-butyl N-[(1E,3E)-1-(6-oxocyclohexen-1-yl)penta-1,3-dienyl]carbamate
• CAS: 905852-96-2
• 化学式: C₁₆H₂₃NO₃
• 分子量: 277.364
• InChiKey: DQAHRIDVZWXHBI-JHKDLGJPSA-N

物化性质

• 沸点：
  400.1±38.0 °C(Predicted)
• 密度：
  1.067±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(6-oxocyclohex-1-enyl)penta-1,3-dienylcarbamic acid tert-butyl ester 以 甲苯 为溶剂， 反应 2.0h， 生成 (4-methyl-8-oxo-4,4a,5,6,7,8-hexahydro-naphthalen-1-yl)-carbamic acid tert-butyl ester
  参考文献：
  名称：

  Synthesis of Indoles via 6π-Electrocyclic Ring Closures of Trienecarbamates

  摘要：

  A new method for the preparation of indoles from readily available alpha-haloenones and alpha-(trialkylstannyl)enecarbamates is described. Following a Stille coupling, trienecarbamate 2 is electronically activated to undergo a facile 6pi-electrocyclic ring closure and subsequent oxidation to afford protected aniline 4. Upon deprotection and reductive amination, acid 5 underwent clean cyclization to N-acetylindole 6 (Ac2O, NEt3, 130 degrees C). This method has been used to construct a variety of substituted indoles that are not easily prepared by conventional indole annelation methods.

  DOI：

  10.1021/ja060282o
• 作为产物：
  描述：

  1-(tributylstannyl)penta-1,3-dienylcarbamic acid tert-butyl ester 、 1-(4-喹啉基)甲胺 在 copper(l) iodide 、 四(三苯基膦)钯 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以85%的产率得到1-(6-oxocyclohex-1-enyl)penta-1,3-dienylcarbamic acid tert-butyl ester
  参考文献：
  名称：

  Synthesis of Indoles via 6π-Electrocyclic Ring Closures of Trienecarbamates

  摘要：

  A new method for the preparation of indoles from readily available alpha-haloenones and alpha-(trialkylstannyl)enecarbamates is described. Following a Stille coupling, trienecarbamate 2 is electronically activated to undergo a facile 6pi-electrocyclic ring closure and subsequent oxidation to afford protected aniline 4. Upon deprotection and reductive amination, acid 5 underwent clean cyclization to N-acetylindole 6 (Ac2O, NEt3, 130 degrees C). This method has been used to construct a variety of substituted indoles that are not easily prepared by conventional indole annelation methods.

  DOI：

  10.1021/ja060282o

文献信息

• Synthesis of Indoles via 6π-Electrocyclic Ring Closures of Trienecarbamates
  作者：Thomas J. Greshock、Raymond L. Funk

  DOI：10.1021/ja060282o

  日期：2006.4.1

  A new method for the preparation of indoles from readily available alpha-haloenones and alpha-(trialkylstannyl)enecarbamates is described. Following a Stille coupling, trienecarbamate 2 is electronically activated to undergo a facile 6pi-electrocyclic ring closure and subsequent oxidation to afford protected aniline 4. Upon deprotection and reductive amination, acid 5 underwent clean cyclization to N-acetylindole 6 (Ac2O, NEt3, 130 degrees C). This method has been used to construct a variety of substituted indoles that are not easily prepared by conventional indole annelation methods.