7-ethyl-3-methyl-1H-indole | 90901-49-8

• 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: 7-ethyl-3-methyl-1H-indole
• 英文别名: 3-methyl-7-ethylindole；7-ethyl-3-methylindole；3-Methyl-7-aethyl-indol
• CAS: 90901-49-8
• 化学式: C₁₁H₁₃N
• 分子量: 159.231
• InChiKey: PKMOATIIHVNEID-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  15.8
• 氢给体数：
  1
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  2,6-二乙基苯基异腈 在 2,2,6,6-tetramethylpiperidinyl-lithium 作用下， 生成 7-ethyl-3-methyl-1H-indole
  参考文献：
  名称：

  利用甲基苯基异氰化物合成吲哚

  摘要：

  以邻甲基苯基异氰化物（例如邻甲苯基、2,4-二甲苯基和 2,6-二甲苯基异氰化物）为起始原料的新型吲哚合成得到了详细描述。在-78°C 下，在二甘醇二甲醚中用 LDA 处理邻甲苯基异氰化物，选择性地以几乎定量的产率生成邻（硫代甲基）苯基异氰化物，其在升温至室温后在水性处理后环化为吲哚。类似地，2,4-二甲苯基和2,6-二甲苯基异氰化物定量环化为5-甲基吲哚和7-甲基吲哚。邻（锂硫甲基）苯基异氰化物与诸如卤代烷和环氧烷之类的亲电子试剂反应得到邻烷基苯基异氰化物，其通过在邻苄基碳上的锂化而环化得到3-取代的吲哚。另一方面，在-78°C 下原位生成的邻（锂硫甲基）苯基异氰化物首先升温至室温，然后用亲电试剂处理以提供 1-取代的吲哚。邻（锂硫甲基）苯基异氰化物以相当好的收率与 N-酰基...

  DOI：

  10.1246/bcsj.57.73

文献信息

• Ruthenium-catalyzed heteroannulation of anilines with alkanolammonium chlorides leading to indoles
  作者：Chan Sik Cho、Jin Hwang Kim、Tae-Jeong Kim、Sang Chul Shim

  DOI：10.1016/s0040-4020(01)00202-2

  日期：2001.4

  Anilines react with alkanolammonium chlorides in an aqueous medium (H2O–dioxane) at 180°C in the presence of a catalytic amount of a ruthenium catalyst together with SnCl2·2H2O to afford the corresponding indoles in moderate to good yields. Especially, when triisopropanolammonium chloride is employed to react with anilines, 2-methylindoles are formed regioselectively. The presence of SnCl2·2H2O is

  在催化量的钌催化剂和SnCl 2 ·2H 2 O的存在下，苯胺在水性介质（H 2 O-二恶烷）中在180°C下与链烷醇氯化铵反应，以中等至良好的收率得到相应的吲哚。特别是，当使用氯化三异丙基丙铵与苯胺反应时，区域选择性地形成2-甲基吲哚。的SnCl存在2 ·2H 2 O为必需的有效形成吲哚。针对该催化过程，提出了一种涉及链烷醇基团从链烷醇胺转移至苯胺，苯胺被苯胺链烷醇进行N-烷基化以及1,2-二苯胺基烷烃的杂环化反应的反应途径。
• Cobalt-catalysed CH-alkylation of indoles with alcohols by borrowing hydrogen methodology
  作者：Bei Zhou、Zhuang Ma、Asma M. Alenad、Carsten Kreyenschulte、Stephan Bartling、Matthias Beller、Rajenahally V. Jagadeesh

  DOI：10.1039/d2gc00469k

  日期：——

  interesting class of heterocyclic compounds widely used in organic synthesis and medicinal chemistry. Key for this synthesis is the use of specific cobalt-nanoparticles supported on N-doped carbon, which were conveniently prepared by the pyrolysis of a templated material generated in situ by mixing cobalt-nitrate, zinc-nitrate, 2,6-diaminopyridine, and colloidal silica, and subsequent removal of silica

  报道了吲哚与醇的一般多相钴催化 CH-烷基化。利用这种直接的借氢方法，一系列取代和官能化的吲哚很容易与包括甲醇在内的苄醇、杂环醇和脂肪醇偶联，以制备 >65 个取代的吲哚，产率从良好到优异。所得产物代表了广泛用于有机合成和药物化学的一类有趣的杂环化合物。该合成的关键是使用负载在 N 掺杂碳上的特定钴纳米颗粒，这些纳米颗粒是通过混合硝酸钴、硝酸锌、2,6-二氨基吡啶和胶体二氧化硅，然后除去二氧化硅。
• Reaction pathway in the vapour-phase synthesis of indole and alkylindoles
  作者：M CAMPANATI、S FRANCESCHINI、O PICCOLO、A VACCARI

  DOI：10.1016/j.jcat.2005.02.014

  日期：2005.5.15

  The vapour-phase synthesis of indole and its derivatives from aniline or alkylanilines and ethylene glycol or other diols was investigated with the use of a novel ZrO2/SiO2 (5:95 w/w) catalyst to check the applicability of this synthesis to a wide number of alkylindoles. During feeding with alkylaniline, the above catalyst showed catalytic results better than those reported in the literature, and a very good regenerability. In particular, with ethylene glycol, the best yields in the corresponding indoles were obtained when a C-2-C-3 alkyl chain was located in the ortho position to the amino group. The differences in reactivity between aniline and alkylaniline were significantly reduced when the length of the diol chain was increased and eliminated with 2,3-butanediol. On the basis of the above data and those collected sharing the synthesis in single steps, a possible overall reaction pathway was proposed to design a better tailor-made catalyst. It was also indicated that the formation of heavy compounds, which are able to deactivate the catalyst, were not derived from the reagents or the following reactions on the indole formed, but might be mainly attributed to the polycondensation of an aldehyde intermediate. (c) 2005 Elsevier Inc. All rights reserved.
• From Alcohols to Indoles: A Tandem Ru Catalyzed Hydrogen-Transfer Fischer Indole Synthesis
  作者：Andrea Porcheddu、Manuel G. Mura、Lidia De Luca、Marianna Pizzetti、Maurizio Taddei

  DOI：10.1021/ol3030956

  日期：2012.12.7

  In a new version of the Fischer indole synthesis, primary and secondary alcohols have been catalytically oxidized in the presence of phenylhydrazines and protic or Lewis acids to give the corresponding indoles. The overall reaction can be accomplished in one step, and the use of alcohols instead of aldehyes or ketones as starting materials has several advantages in terms of a large selection of reagents, easy handling, and safety of the process.
• DERIVES DE 5-SULFANYL-4H-1,2,4-TRIAZOLES POUR TRAITER LES DÉSORDRES ASSOCIÉS À LA SOMATOSTATINE
  申请人：IPSEN PHARMA

  公开号：EP1465880B1

  公开（公告）日：2009-08-05