1-[2-(2,2-Diethyl-[1,3]dioxolan-4-yl)-ethyl]-1H-indole | 336883-68-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 1-[2-(2,2-Diethyl-[1,3]dioxolan-4-yl)-ethyl]-1H-indole
• CAS: 336883-68-2
• 化学式: C₁₇H₂₃NO₂
• 分子量: 273.375
• InChiKey: QUCRMGVJOUVYKE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.96
• 重原子数：
  20.0
• 可旋转键数：
  5.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  23.39
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  1-[2-(2,2-Diethyl-[1,3]dioxolan-4-yl)-ethyl]-1H-indole 在 盐酸 作用下， 以 四氢呋喃 为溶剂， 以91%的产率得到4-indolylbutane-1,2-diol
  参考文献：
  名称：

  Cyclization Strategies for the Synthesis of Macrocyclic Bisindolylmaleimides

  摘要：

  Three new approaches to the synthesis of macrocyclic bisindolylmaleimides 1-4 have been identified. Two strategies afford 8, the penultimate intermediate for the synthesis of 1-4, in 73% and 32% yield by intramolecular cyclization of 31 and 40, respectively. The optimum synthesis of 1 was achieved in nine steps and 15% yield by intramolecular formation of the macrocycle and maleimide in one step by reaction of the sodium indolate of 12 with methyl indole-3-glyoxylate 47. The mechanism of this reaction has been elucidated, using the trityl-protected derivative, to involve initial formation of the tricarbonyl im ide 48, followed by irreversible alkylation of the indole nitrogen to generate the 17-membered macrocycle 49. Cyclization of 49 to hydroxymaleimide 50 and subsequent dehydration afforded 8a. This approach eliminated the problem of dimerization observed in the intramolecular cyclization reactions.

  DOI：

  10.1021/jo001605g
• 作为产物：
  描述：

  吲哚 、 toluene-4-sulfonic acid 2-(2,2-diethyl[1,3]dioxolan-4-yl)ethyl ester 在 sodium hydride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 17.0h， 以96%的产率得到1-[2-(2,2-Diethyl-[1,3]dioxolan-4-yl)-ethyl]-1H-indole
  参考文献：
  名称：

  Cyclization Strategies for the Synthesis of Macrocyclic Bisindolylmaleimides

  摘要：

  Three new approaches to the synthesis of macrocyclic bisindolylmaleimides 1-4 have been identified. Two strategies afford 8, the penultimate intermediate for the synthesis of 1-4, in 73% and 32% yield by intramolecular cyclization of 31 and 40, respectively. The optimum synthesis of 1 was achieved in nine steps and 15% yield by intramolecular formation of the macrocycle and maleimide in one step by reaction of the sodium indolate of 12 with methyl indole-3-glyoxylate 47. The mechanism of this reaction has been elucidated, using the trityl-protected derivative, to involve initial formation of the tricarbonyl im ide 48, followed by irreversible alkylation of the indole nitrogen to generate the 17-membered macrocycle 49. Cyclization of 49 to hydroxymaleimide 50 and subsequent dehydration afforded 8a. This approach eliminated the problem of dimerization observed in the intramolecular cyclization reactions.

  DOI：

  10.1021/jo001605g