1,2,3,4-Tetrahydro-10-cyanopyrido<1,2-a>indole

• 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: 1,2,3,4-Tetrahydro-10-cyanopyrido<1,2-a>indole
• 英文别名: 6,7,8,9-tetrahydropyrido[1,2-a]indole-10-carbonitrile
• 化学式: C₁₃H₁₂N₂
• 分子量: 196.252
• InChiKey: HUWRPEWZWOKPBK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  15
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  28.7
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  3-氰基吲哚 在 potassium carbonate 、 三乙胺 、 sodium hydroxide 作用下， 以 四氢呋喃 、 甲醇 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 26.67h， 生成 1,2,3,4-Tetrahydro-10-cyanopyrido<1,2-a>indole
  参考文献：
  名称：

  用于杂芳族取代的引发剂自由基环化的Barton酯†

  摘要：

  S-（1-Oxido-2-pyridinyl）-1,1,3,3-tetramethylthiouronium hexafluorophosphate（HOTT）促进了通过Barton酯中间体进行（杂）芳香取代的有效自由基环化的第一个例子。环丙基和烷基可与五个，六个和七元脂环族稠合杂环一起使用，无论是否有其他稠合环丙烷，包括抗癌药环丙烷酰胺的骨架，展开的和 二唑类似物。自由基引发剂是不需要用于从羧酸前体的环化。

  DOI：

  10.1039/c3ob27313j

文献信息

• Visible-Light-Driven Palladium-Catalyzed Radical Alkylation of C−H Bonds with Unactivated Alkyl Bromides
  作者：Wen-Jun Zhou、Guang-Mei Cao、Guo Shen、Xing-Yong Zhu、Yong-Yuan Gui、Jian-Heng Ye、Liang Sun、Li-Li Liao、Jing Li、Da-Gang Yu

  DOI：10.1002/anie.201704513

  日期：2017.12.4

  Reported herein is a novel visible‐light photoredox system with Pd(PPh3)4 as the sole catalyst for the realization of the first direct cross‐coupling of C(sp3)−H bonds in N‐aryl tetrahydroisoquinolines with unactivated alkyl bromides. Moreover, intra‐ and intermolecular alkylations of heteroarenes were also developed under mild reaction conditions. A variety of tertiary, secondary, and primary alkyl

  本文报道了一种新型的可见光光氧化还原体系，其中Pd（PPh 3）4是实现N-芳基四氢异喹啉中C（sp 3）-H键与未活化烷基溴的第一个直接交叉偶联的唯一催化剂。此外，杂芳烃的分子内和分子间烷基化反应也在温和的反应条件下进行。各种叔，仲和伯烷基溴经过反应生成C（sp 3）-C（sp 3）和C（sp 2）-C（sp 3）债券，收益率中等至极高。这些氧化还原中性反应具有广泛的底物范围（> 60个示例），良好的功能基团耐受性和易于生成的四元中心。机理研究表明，简单的钯配合物充当可见光光催化剂，自由基参与该过程。
• Indole Functionalization via Photoredox Gold Catalysis
  作者：Sherif J. Kaldas、Alexandre Cannillo、Terry McCallum、Louis Barriault

  DOI：10.1021/acs.orglett.5b01260

  日期：2015.6.5

  photoredox catalyst [Au2(dppm)2]Cl2 to initiate free-radical cyclizations onto indoles is reported. Excitation of the dimeric Au(I) photocatalyst for the reduction of unactivated bromoalkanes and bromoarenes is used for the generation of carbon-centered radicals. Previous to this work, reduction processes leading to indole functionalization utilizing photoredox catalysts were limited to activated benzylic

  报道了使用光氧化还原催化剂[Au 2（dppm）2 ] Cl 2来引发在吲哚上的自由基环化。激发二聚体Au（I）光催化剂以还原未活化的溴代烷烃和溴代芳烃用于碳中心自由基的产生。在这项工作之前，利用光氧化还原催化剂导致吲哚官能化的还原过程仅限于活化的苄基或α-羰基定位的溴代烷烃。该方法为有机锡烷和发火引发剂提供了温和且安全的替代方法，可用于获得以前通过催化或化学计量方法无法获得的高能自由基。
• 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).
• Development of Madelung-Type Indole Synthesis Using Copper-Catalyzed Amidation/Condensation Strategy
  作者：Yoshinori Kondo、Masahiro Abe、Charline Denneval、Kanako Nozawa-Kumada

  DOI：10.3987/com-16-13440

  日期：——

  A new method for Madelung-type indole synthesis was investigated, and it was found that the amidation of 2-iodophenylacetonitrile with various alkanamides proceeds smoothly in the presence of CuI and a diamine ligand. The subsequent cyclization of the C-N coupling products takes place under the coupling reaction conditions.
• Barton esters for initiator-free radical cyclisation with heteroaromatic substitution
  作者：Robert Coyle、Karen Fahey、Fawaz Aldabbagh

  DOI：10.1039/c3ob27313j

  日期：——

  first examples of efficient radical cyclisation with (hetero)aromatic substitution via Barton ester intermediates. Cyclopropyl and alkyl radicals allow access to five, six and seven-membered alicyclic-ring fused heterocycles with and without an additional fused cyclopropane, including the skeleton of the anti-cancer agent, cyclopropamitosene, expanded, and diazole analogues. Radical initiators are not

  S-（1-Oxido-2-pyridinyl）-1,1,3,3-tetramethylthiouronium hexafluorophosphate（HOTT）促进了通过Barton酯中间体进行（杂）芳香取代的有效自由基环化的第一个例子。环丙基和烷基可与五个，六个和七元脂环族稠合杂环一起使用，无论是否有其他稠合环丙烷，包括抗癌药环丙烷酰胺的骨架，展开的和 二唑类似物。自由基引发剂是不需要用于从羧酸前体的环化。