1-(Methoxycarbonyl)-2-(4-pentenyl)-2,3,5,6-tetrahydro-4-pyridone | 160856-50-8

• 分子结构分类: 有机化合物 - 生物碱及其衍生物
• 英文名称: 1-(Methoxycarbonyl)-2-(4-pentenyl)-2,3,5,6-tetrahydro-4-pyridone
• 英文别名: Methyl 4-oxo-2-pent-4-enylpiperidine-1-carboxylate
• CAS: 160856-50-8
• 化学式: C₁₂H₁₉NO₃
• 分子量: 225.288
• InChiKey: FSQVEQLHGJKOQH-UHFFFAOYSA-N

物化性质

• 沸点：
  325.1±35.0 °C(predicted)
• 密度：
  1.053±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-(Methoxycarbonyl)-2-(4-pentenyl)-2,3,5,6-tetrahydro-4-pyridone 在 二甲基硫 、 臭氧 作用下， 生成 1-(Methoxycarbonyl)-2-(3-formylpropyl)-2,3,5,6-tetrahydro-4-pyridone
  参考文献：
  名称：

  Model Studies toward the Synthesis of the Lycopodium Alkaloid, Phlegmarine

  摘要：

  Model studies were carried out toward the preparation of Lycopodium alkaloids, i.e. the phlegmarines, which contain a trans-decahydroquinoline ring system, The target decahydroquinoline derivative 6 was synthesized stereoselectively in eight steps. The keto aldehyde 10, prepared in three steps from 4-methoxypyridine, was subjected to an acid-catalyzed Robinson annulation reaction to give bicyclic enone 11, Copper-mediated 1,4-addition of [(dimethylphenylsilyl)methyl]magnesium chloride and in situ trapping with N-(5-chloro-2-pyridyl)triflimide provided vinyl triflate 12. Conversion to olefin 16 and subsequent hydrolysis gave amine 20, Stereoselective hydrogenation of 20 over palladium on carbon yielded the trans-decahydroquinoline 6 and its cis isomer 21 in a ratio of 89:11, Arguments involving A((1,3)) strain are given to explain the observed stereoselectivity.

  DOI：

  10.1021/jo00108a039
• 作为产物：
  描述：

  4-甲氧基吡啶 在 L-Selectride 作用下， 以 四氢呋喃 为溶剂， 反应 2.5h， 生成 1-(Methoxycarbonyl)-2-(4-pentenyl)-2,3,5,6-tetrahydro-4-pyridone
  参考文献：
  名称：

  Model Studies toward the Synthesis of the Lycopodium Alkaloid, Phlegmarine

  摘要：

  Model studies were carried out toward the preparation of Lycopodium alkaloids, i.e. the phlegmarines, which contain a trans-decahydroquinoline ring system, The target decahydroquinoline derivative 6 was synthesized stereoselectively in eight steps. The keto aldehyde 10, prepared in three steps from 4-methoxypyridine, was subjected to an acid-catalyzed Robinson annulation reaction to give bicyclic enone 11, Copper-mediated 1,4-addition of [(dimethylphenylsilyl)methyl]magnesium chloride and in situ trapping with N-(5-chloro-2-pyridyl)triflimide provided vinyl triflate 12. Conversion to olefin 16 and subsequent hydrolysis gave amine 20, Stereoselective hydrogenation of 20 over palladium on carbon yielded the trans-decahydroquinoline 6 and its cis isomer 21 in a ratio of 89:11, Arguments involving A((1,3)) strain are given to explain the observed stereoselectivity.

  DOI：

  10.1021/jo00108a039

文献信息

• Model Studies toward the Synthesis of the Lycopodium Alkaloid, Phlegmarine
  作者：Daniel L. Comins、Rima S. Al-awar

  DOI：10.1021/jo00108a039

  日期：1995.2

  Model studies were carried out toward the preparation of Lycopodium alkaloids, i.e. the phlegmarines, which contain a trans-decahydroquinoline ring system, The target decahydroquinoline derivative 6 was synthesized stereoselectively in eight steps. The keto aldehyde 10, prepared in three steps from 4-methoxypyridine, was subjected to an acid-catalyzed Robinson annulation reaction to give bicyclic enone 11, Copper-mediated 1,4-addition of [(dimethylphenylsilyl)methyl]magnesium chloride and in situ trapping with N-(5-chloro-2-pyridyl)triflimide provided vinyl triflate 12. Conversion to olefin 16 and subsequent hydrolysis gave amine 20, Stereoselective hydrogenation of 20 over palladium on carbon yielded the trans-decahydroquinoline 6 and its cis isomer 21 in a ratio of 89:11, Arguments involving A((1,3)) strain are given to explain the observed stereoselectivity.