Methyl 5-[[2-(3,4-dimethoxyphenyl)acetyl]-(3-methylbut-3-enyl)amino]furan-2-carboxylate | 208335-24-4

• 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: Methyl 5-[[2-(3,4-dimethoxyphenyl)acetyl]-(3-methylbut-3-enyl)amino]furan-2-carboxylate
• CAS: 208335-24-4
• 化学式: C₂₁H₂₅NO₆
• 分子量: 387.433
• InChiKey: VBWSSNVQGFLZFG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  28
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  78.2
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  Methyl 5-[[2-(3,4-dimethoxyphenyl)acetyl]-(3-methylbut-3-enyl)amino]furan-2-carboxylate 在 camphor-10-sulfonic acid 、 lithium perchlorate 作用下， 以 乙醚 为溶剂， 反应 20.0h， 以79%的产率得到methyl 5-(8,9-dimethoxy-6,6-dimethyl-2-oxo-4,5-dihydro-1H-3-benzazocin-3-yl)furan-2-carboxylate
  参考文献：
  名称：

  IMDAF Cycloaddition as a Method for the Preparation of Pyrrolophenanthridine Alkaloids

  摘要：

  Acylation of 5-amino-2-furancarboxylic acid methyl ester with alkenoyl acid chlorides gives 2-amidofurans that undergo intramolecular Diels-Alder cycloadditions. The reactions occur at 165 degrees C in toluene or at 100 degrees C when 4 M ethereal LiClO4 was used as the solvent. The resultant dihydroindoles are formed by the nitrogen lone pair assisted ring opening of the initial era-bridged cycloadducts, followed by loss of water. Under certain conditions, alternative cationic cyclization routes become important pathways. Several members of the pyrrolophenanthridine class of alkaloids were obtained by a short, efficient method based on the intramolecular Diels-Alder furan cycloaddition of 2-amidofurans containing a tethered alkenyl group. The resulting dihydroindoles were elaborated in one step to the 1H-pyrrolo[3,2,1-de]phenanthridine ring system by a free radical induced cyclization using bis(tributyltin).

  DOI：

  10.1021/jo980008f
• 作为产物：
  描述：

  (3,4-二甲氧基苯基)乙酰氯 在 吡啶 、 caesium carbonate 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 75.0h， 生成 Methyl 5-[[2-(3,4-dimethoxyphenyl)acetyl]-(3-methylbut-3-enyl)amino]furan-2-carboxylate
  参考文献：
  名称：

  IMDAF Cycloaddition as a Method for the Preparation of Pyrrolophenanthridine Alkaloids

  摘要：

  Acylation of 5-amino-2-furancarboxylic acid methyl ester with alkenoyl acid chlorides gives 2-amidofurans that undergo intramolecular Diels-Alder cycloadditions. The reactions occur at 165 degrees C in toluene or at 100 degrees C when 4 M ethereal LiClO4 was used as the solvent. The resultant dihydroindoles are formed by the nitrogen lone pair assisted ring opening of the initial era-bridged cycloadducts, followed by loss of water. Under certain conditions, alternative cationic cyclization routes become important pathways. Several members of the pyrrolophenanthridine class of alkaloids were obtained by a short, efficient method based on the intramolecular Diels-Alder furan cycloaddition of 2-amidofurans containing a tethered alkenyl group. The resulting dihydroindoles were elaborated in one step to the 1H-pyrrolo[3,2,1-de]phenanthridine ring system by a free radical induced cyclization using bis(tributyltin).

  DOI：

  10.1021/jo980008f