methyl 1-(3-oxobutyl)-1H-indole-3-carboxylate | 156237-72-8

• 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: methyl 1-(3-oxobutyl)-1H-indole-3-carboxylate
• 英文别名: Methyl 1-(3-oxobutyl)indole-3-carboxylate
• CAS: 156237-72-8
• 化学式: C₁₄H₁₅NO₃
• 分子量: 245.278
• InChiKey: DGWDXBWSQLCQLQ-UHFFFAOYSA-N

物化性质

• 沸点：
  408.6±25.0 °C(Predicted)
• 密度：
  1.16±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  48.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl 1-(3-oxobutyl)-1H-indole-3-carboxylate 在 sodium tetrahydroborate 作用下， 以 甲醇 为溶剂， 反应 0.25h， 以90%的产率得到Methyl 1-(3-hydroxybutyl)indole-3-carboxylate
  参考文献：
  名称：

  Oxidative Radical Cyclization of (.omega.-Iodoalkyl)indoles and Pyrroles. Synthesis of (-)-Monomorine and Three Diastereomers

  摘要：

  Addition of excess hydrogen peroxide (10 equiv) to a sonicated solution of FeSO4:7H(2)O (1 equiv) in Dh ISO containing the N-(omega-iodoalkyl)indoles 4, 5, 11, and 13 effected oxidative radical cyclization to 6, 7, 14, and 15, respectively. The (omega-iodoalkyl)pyrroles 21, 22, 27, 38, and 49 underwent analogous cyclization reactions to 23, 24, 28, 39, and 50, respectively. The regiochemistry of these radical cyclization reactions was correctly predicted by FMO calculations in all cases but one. For compound 38, FMO calculations indicated that radical attack should take place at both C-3 and C-5. Only the product of cyclization at C-5, i.e., 39, was observed. The enantiomerically pure bicyclic ketone 42, prepared by the above technique from the iodide 53, was converted into 55 which, on catalytic reduction (H-2/Rh-A1(2)O(3)), gave a mixture of (-)-monomorine (40) and three of its diastereomers 56-58 (see, however, Note Added in Proof).

  DOI：

  10.1021/jo00088a029
• 作为产物：
  描述：

  在 对甲苯磺酸 作用下， 以 水 、 丙酮 为溶剂， 以519 mg的产率得到methyl 1-(3-oxobutyl)-1H-indole-3-carboxylate
  参考文献：
  名称：

  高度非对映选择性二碘化钐诱导的吲哚和吡咯衍生物的酮基环化 - 范围和限制

  摘要：

  在这里，我们总结了 SmI2 诱导的适当取代的吲哚和吡咯衍生物的 5-exo-trig 到 8-exo-trig 还原环化的结果。所有前体都可以通过吲哚和吡咯衍生物与相应的碘代烷酮、酰氯或内酯的简单 N-烷基化或 N-酰化来轻松制备。在大多数情况下，SmI2 诱导的环化提供了三环和四环衍生物，即使在没有 HMPA 的情况下，也具有良好到非常好的产率和出色的非对映选择性。对反应条件的广泛研究表明，在不同质子源的情况下，SmI2 诱导的环化主要提供一种主要类型的非对映异构体（热力学控制），因此一步控制三个或四个立体中心的形成。在这些观察的基础上更详细地讨论了 SmI2 诱导的酮基偶联的机制，并比较了两种可能的机制途径。假定的中间钐烯醇化物也被烯丙基碘捕获，提供有趣的多环 N-杂环，带有新形成的四元中心作为单一非对映异构体。

  DOI：

  10.1002/ejoc.200901455

文献信息

• Electroreductive Intramolecular Coupling of 1-Indolealkanones
  作者：Naoki Kise、Toshiyuki Mano、Toshihiko Sakurai

  DOI：10.1021/ol801876k

  日期：2008.10.16

  The electroreduction of 1-indolealkanones in isopropanol gave five-, six-, and seven-membered trans-cyclized products stereospecifically. On the other hand, the electroreduction of 3-methoxycarbonyl-1-indolealkanones afforded mixtures of two diastereomers of the corresponding trans- and cis-cyclized products. The DFT calculations for the radical anions support that the reductive couplings of 1-indolealkanones

  1-吲哚链烷酮在异丙醇中的电还原立体定向生成五元，六元和七元反式环化产物。另一方面，3-甲氧基羰基-1-吲哚链烷酮的电还原得到相应反式和顺式环化产物的两种非对映异构体的混合物。自由基阴离子的DFT计算支持1-吲哚链烷酮和3-甲氧基羰基-1-吲哚链烷酮的还原偶联通过不同的反应机理进行。
• Cobalt(II) Porphyrin-Catalyzed Intramolecular Cyclopropanation of N-Alkyl Indoles/Pyrroles with Alkylcarbene: Efficient Synthesis of Polycyclic N-Heterocycles
  作者：Annapureddy Rajasekar Reddy、Fei Hao、Kai Wu、Cong-Ying Zhou、Chi-Ming Che

  DOI：10.1002/anie.201506418

  日期：2016.1.26

  A protocol on chemoselective cobalt(II) porphyrin‐catalyzed intramolecular cyclopropanation of N‐alkyl indoles/pyrroles with alkylcarbenes has been developed. The reaction enables the rapid construction of a range of nitrogen‐containing polycyclic compounds in moderate to high yields from readily accessible materials. These N‐containing polycyclic compounds can be converted into a variety of N‐heterocycles

  已开发出一种化学选择性的钴（II）卟啉催化的N-烷基吲哚/吡咯与烷基卡宾的分子内环丙烷化的方案。该反应可以从容易获得的材料中以中等到高收率快速构建一系列含氮多环化合物。这些含氮多环化合物可以转化为具有潜在合成和生物学意义的各种N杂环。与它们的N-甲苯磺酰hydr相比，使用大体积的N-2,4,6-三异丙基苯磺酰基作为卡宾前体，可使环丙烷化反应在较温和的条件下进行。
• Novel Stereoselective Syntheses of Highly Functionalized Benzannulated Pyrrolizidines and Indolizidines by Samarium Diiodide Induced Cyclizations of Indole Derivatives
  作者：Steffen Gross、Hans-Ulrich Reissig

  DOI：10.1021/ol0355581

  日期：2003.11.1

  Suitably substituted heteroaromatic compounds such as indole and pyrrole derivatives are excellent acceptor units for intramolecular couplings of samarium ketyls. They furnish highly functionalized indole derivatives with very good diastereoselectivities additionally. Intermediate samarium enolates can be trapped by electrophiles, allowing efficient tandem reactions.
• Highly Diastereoselective Samarium Diiodide Induced Ketyl Cyclisations of Indole and Pyrrole Derivatives - Scope and Limitations
  作者：Christine Beemelmanns、Virginie Blot、Steffen Gross、Dieter Lentz、Hans-Ulrich Reissig

  DOI：10.1002/ejoc.200901455

  日期：2010.5

  Here we summarise our results for SmI2-induced 5-exo-trig to 8-exo-trig reductive cyclisations of suitably substituted indole and pyrrole derivatives. All precursors were easily prepared by simple N-alkylation or N-acylation of indole and pyrrole derivatives with the corresponding iodo alkanones, acid chlorides or lactones. The SmI2-induced cyclisations in most cases provided tri- and tetracyclic derivatives

  在这里，我们总结了 SmI2 诱导的适当取代的吲哚和吡咯衍生物的 5-exo-trig 到 8-exo-trig 还原环化的结果。所有前体都可以通过吲哚和吡咯衍生物与相应的碘代烷酮、酰氯或内酯的简单 N-烷基化或 N-酰化来轻松制备。在大多数情况下，SmI2 诱导的环化提供了三环和四环衍生物，即使在没有 HMPA 的情况下，也具有良好到非常好的产率和出色的非对映选择性。对反应条件的广泛研究表明，在不同质子源的情况下，SmI2 诱导的环化主要提供一种主要类型的非对映异构体（热力学控制），因此一步控制三个或四个立体中心的形成。在这些观察的基础上更详细地讨论了 SmI2 诱导的酮基偶联的机制，并比较了两种可能的机制途径。假定的中间钐烯醇化物也被烯丙基碘捕获，提供有趣的多环 N-杂环，带有新形成的四元中心作为单一非对映异构体。
• Oxidative Radical Cyclization of (.omega.-Iodoalkyl)indoles and Pyrroles. Synthesis of (-)-Monomorine and Three Diastereomers
  作者：Dean R. Artis、In-Seop Cho、Saul Jaime-Figueroa、Joseph M. Muchowski

  DOI：10.1021/jo00088a029

  日期：1994.5

  Addition of excess hydrogen peroxide (10 equiv) to a sonicated solution of FeSO4:7H(2)O (1 equiv) in Dh ISO containing the N-(omega-iodoalkyl)indoles 4, 5, 11, and 13 effected oxidative radical cyclization to 6, 7, 14, and 15, respectively. The (omega-iodoalkyl)pyrroles 21, 22, 27, 38, and 49 underwent analogous cyclization reactions to 23, 24, 28, 39, and 50, respectively. The regiochemistry of these radical cyclization reactions was correctly predicted by FMO calculations in all cases but one. For compound 38, FMO calculations indicated that radical attack should take place at both C-3 and C-5. Only the product of cyclization at C-5, i.e., 39, was observed. The enantiomerically pure bicyclic ketone 42, prepared by the above technique from the iodide 53, was converted into 55 which, on catalytic reduction (H-2/Rh-A1(2)O(3)), gave a mixture of (-)-monomorine (40) and three of its diastereomers 56-58 (see, however, Note Added in Proof).