1-acetyl-2-ethyl-3-methylindole

• 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-acetyl-2-ethyl-3-methylindole
• 英文别名: 1-(2-Ethyl-3-methylindol-1-yl)ethanone
• 化学式: C₁₃H₁₅NO
• 分子量: 201.268
• InChiKey: DTNSLNHQZFZUCQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  22
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  N-(2-vinylphenyl)acetamide 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 乙烯氧基三甲基硅烷 、 sodium hydride 作用下， 以 四氢呋喃 、 xylene 为溶剂， 反应 13.0h， 生成 1-acetyl-2-ethyl-3-methylindole
  参考文献：
  名称：

  N-杂环碳氢化物与氢化钌异构化和环异构化的发展及其在杂环合成中的应用

  摘要：

  第二代Grubbs钌催化剂与乙烯基氧基三甲基硅烷的反应可有效生成具有N-杂环卡宾（NHC）配体的纯氢化钌络合物，并具有明确的特征。该氢化钌络合物对末端烯烃的选择性异构化和1,6-二烯的环异构化显示出高催化活性。的这些反应Ñ -allyl- Ò -vinylaniline导致新的合成方法杂环如吲哚和3-亚甲基-2,3- dihydroindoles，这对于生物活性天然产物有用的合成子。这些程序解决了面向多样性的综合中的一个重要问题。

  DOI：

  10.1021/jo060308u

文献信息

• Synthesis of 2,3-Disubstituted Indoles via Palladium-Catalyzed Annulation of Internal Alkynes
  作者：R. C. Larock、E. K. Yum、M. D. Refvik

  DOI：10.1021/jo9803277

  日期：1998.10.1

  The palladium-catalyzed coupling of 2-iodoaniline and the corresponding N-methyl, -acetyl, and -tosyl derivatives with a wide variety of internal alkynes provides 2,3-disubstituted indoles in good-to-excellent yields. The best results are obtained by employing an excess of the alkyne and a sodium or potassium acetate or carbonate base plus 1 equiv of either LiCl or n-Bu4NCl, occasionally adding 5 mol % PPh3. The yields with LiCl appear to be higher and more reproducible than those obtained with n-Bu4NCl. The process is quite general as far as the types of substituents which can be accommodated on the nitrogen of the aniline and the two ends of the alkyne triple bond. The reaction is quite regioselective, placing the aryl group of the aniline on the less sterically hindered end of the triple bond and the nitrogen moiety on the more sterically hindered end. This methodology readily affords 2-silylindoles, which can be easily protodesilylated, halogenated, or reacted with alkenes and Pd(OAc)(2) to produce 3-substituted indoles, 2-haloindoles, or 2-(1-alkenyl)indoles, respectively. The presence of alcohol groups in the alkyne seems to have a particularly strong directing effect, perhaps due to coordination with palladium. This catalytic process apparently involves arylpalladium formation, regioselective addition to the C-C triple bond of the alkyne, and subsequent intramolecular palladium displacement.
• Development of Isomerization and Cycloisomerization with Use of a Ruthenium Hydride with <i>N</i>-Heterocyclic Carbene and Its Application to the Synthesis of Heterocycles
  作者：Mitsuhiro Arisawa、Yukiyoshi Terada、Kazuyuki Takahashi、Masako Nakagawa、Atsushi Nishida

  DOI：10.1021/jo060308u

  日期：2006.5.1

  ruthenium hydride complex with N-heterocyclic carbene (NHC) ligand was efficiently generated from the reaction of a second-generation Grubbs ruthenium catalyst with vinyloxytrimethylsilane and unambiguously characterized. This ruthenium hydride complex showed high catalytic activity for the selective isomerization of terminal olefin and for the cycloisomerization of 1,6-dienes. These reactions of N-allyl-o-vinylaniline

  第二代Grubbs钌催化剂与乙烯基氧基三甲基硅烷的反应可有效生成具有N-杂环卡宾（NHC）配体的纯氢化钌络合物，并具有明确的特征。该氢化钌络合物对末端烯烃的选择性异构化和1,6-二烯的环异构化显示出高催化活性。的这些反应Ñ -allyl- Ò -vinylaniline导致新的合成方法杂环如吲哚和3-亚甲基-2,3- dihydroindoles，这对于生物活性天然产物有用的合成子。这些程序解决了面向多样性的综合中的一个重要问题。