3-benzyl-1-ethyl-3-hydroxy-1,3-dihydro-2H-indol-2-one

• 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: 3-benzyl-1-ethyl-3-hydroxy-1,3-dihydro-2H-indol-2-one
• 英文别名: 3-Benzyl-1-ethyl-3-hydroxyindol-2-one
• 化学式: C₁₇H₁₇NO₂
• 分子量: 267.327
• InChiKey: OSNAGCOQUFDMGR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  40.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  3-benzyl-1-ethyl-4-hydroxy-2(1H)-quinolone 在 过氧乙酸 、 氢氧化钾 、 air 作用下， 以 苯 为溶剂， 反应 39.0h， 生成 3-benzyl-1-ethyl-3-hydroxy-1,3-dihydro-2H-indol-2-one
  参考文献：
  名称：

  Novel Ring Contraction of 3-Hydroxy-2,4(1H,3H)-quinolinediones in Aqueous Alkali. The First Convenient Route to 2-Hydroxyindoxyls

  摘要：

  Ring contraction of 3-hydroxy-2,4(1H,3H)-quinolinediones (1) in aqueous potassium hydroxide resulted in the formation of 2-hydroxyindoxyls and/or dioxindoles. The choice of N-substituent and the reaction conditions govern the chemoselectivity of the reaction. N-Phenyl-substituted derivatives 1 give 2-hydroxyindoxyls, while N-alkyl- and N-benzyl-substituted derivatives afford the corresponding dioxindols. On the basis of byproduct analysis, as well as independent experiments, the most plausible reaction mechanism is proposed.

  DOI：

  10.1021/jo015786d

文献信息

• Novel Ring Contraction of 3-Hydroxy-2,4(1<i>H</i>,3<i>H</i>)-quinolinediones in Aqueous Alkali. The First Convenient Route to 2-Hydroxyindoxyls
  作者：Stanislav Kafka、Antonín Klásek、Janez Košmrlj

  DOI：10.1021/jo015786d

  日期：2001.9.1

  Ring contraction of 3-hydroxy-2,4(1H,3H)-quinolinediones (1) in aqueous potassium hydroxide resulted in the formation of 2-hydroxyindoxyls and/or dioxindoles. The choice of N-substituent and the reaction conditions govern the chemoselectivity of the reaction. N-Phenyl-substituted derivatives 1 give 2-hydroxyindoxyls, while N-alkyl- and N-benzyl-substituted derivatives afford the corresponding dioxindols. On the basis of byproduct analysis, as well as independent experiments, the most plausible reaction mechanism is proposed.