2-(4-methyl-1H-imidazol-1-yl)aniline

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 2-(4-methyl-1H-imidazol-1-yl)aniline
• 英文别名: 2-(4-methylimidazol-1-yl)aniline
• 化学式: C₁₀H₁₁N₃
• 分子量: 173.217
• InChiKey: GXCQDIWNAXPKLQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  13
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.1
• 拓扑面积：
  43.8
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  间硝基苯甲醛 、 2-(4-methyl-1H-imidazol-1-yl)aniline 在 T406石油添加剂 、 对甲苯磺酸 作用下， 以 甲苯 为溶剂， 以78%的产率得到3-methyl-4-(3-nitrophenyl)imidazo[1,5-a]quinoxaline
  参考文献：
  名称：

  Selective synthesis of 4,5-dihydroimidazo- and imidazo[1,5-a]quinoxalines via modified Pictet–Spengler reaction

  摘要：

  An efficient tandem approach for the selective synthesis of 4,5-dihydroimidazo[1,5-a]quinoxalines 6a-g and imidazo[1,5-a]quinoxalines 7a-h by the reaction of 2-imidazolyl anilines 4a-c with aryl aldehydes 5a-k under mild reaction conditions is described. Introduction of electron releasing alkyl groups in substrates 4a-b was found to be instrumental for the success of the reaction. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.08.052
• 作为产物：
  描述：

  1-氟-2-硝基苯 在 palladium 10% on activated carbon 、 氢气 、 sodium hydroxide 作用下， 以 乙醇 、 二甲基亚砜 为溶剂， 25.0 ℃ 、310.27 kPa 条件下， 生成 2-(4-methyl-1H-imidazol-1-yl)aniline
  参考文献：
  名称：

  路易斯酸催化通过改良的 Pictet-Spengler 反应选择性合成不同取代的吲哚-和吡咯并 [1,2-a] 喹喔啉和喹喔啉酮

  摘要：

  描述了使用苯并三唑方法通过改进的 Pictet-Spengler 反应选择性合成 1,2-环化 α-稠合喹喔啉的有效串联工艺。该方法涉及芳胺 4 与芳香醛 5 的反应，以提供 6-endo-dig-环化产物。通过在室温下在四氢呋喃 (THF) 中使用 AlCl3 两小时，选择性地获得二氢喹喔啉 6。然而，10 小时后，喹喔啉 7 仅以极好的收率获得。还合成了一系列生物学上重要的氟和哌嗪基取代的喹喔啉。这种开发的方法还提供了一种新型串联合成喹喔啉酮 9 的途径。

  DOI：

  10.1002/ejoc.201101013

文献信息

• Terminal methyl as a one-carbon synthon: synthesis of quinoxaline derivatives<i>via</i>radical-type transformation
  作者：Xinfeng Wang、Huanhuan Liu、Caixia Xie、Feiyu Zhou、Chen Ma

  DOI：10.1039/c9nj04910j

  日期：——

  pyrrolo[1,2-a]quinoxaline derivatives has been developed. Ferric chloride served as a promoter and as a Lewis acid in the reaction. Solvents provided the corresponding carbon sources simultaneously. The majority of solvents with terminal methyl groups, including ethers, amines and dimethyl sulfoxide, were reactive in the synthesis of quinoxaline derivatives at a certain yield via C–H(sp3) amination/C–O

  已经开发了铁促进的吡咯并[1,2- a ]喹喔啉衍生物的构建方法。氯化铁在反应中用作促进剂和路易斯酸。溶剂同时提供了相应的碳源。大多数带有末端甲基的溶剂，包括醚，胺和二甲基亚砜，在通过C–H（sp 3）胺化/ C–O或C–N（C–S ）分裂。该方法适用于多种吡咯并[1,2- a ]喹喔啉和吲哚并[1,2- a ]喹唑啉底物。
• Lewis Acid-Catalyzed Selective Synthesis of Diversely Substituted Indolo- and Pyrrolo[1,2-a]quinoxalines and Quinoxalinones by Modified Pictet-Spengler Reaction
  作者：Akhilesh K. Verma、Rajeev R. Jha、V. Kasi Sankar、Trapti Aggarwal、Rajendra P. Singh、Ramesh Chandra

  DOI：10.1002/ejoc.201101013

  日期：2011.12

  An efficient tandem process for the selective synthesis of 1,2-annulated α-fused quinoxalines using benzotriazole methodology by a modified Pictet–Spengler reaction is described. The approach involves the reaction of arylamines 4 with aromatic aldehydes 5 to furnish 6-endo-dig-cyclized products. Dihydroquinoxalines 6 were selectively obtained by using AlCl3 in tetrahydrofuran (THF) at room temperature

  描述了使用苯并三唑方法通过改进的 Pictet-Spengler 反应选择性合成 1,2-环化 α-稠合喹喔啉的有效串联工艺。该方法涉及芳胺 4 与芳香醛 5 的反应，以提供 6-endo-dig-环化产物。通过在室温下在四氢呋喃 (THF) 中使用 AlCl3 两小时，选择性地获得二氢喹喔啉 6。然而，10 小时后，喹喔啉 7 仅以极好的收率获得。还合成了一系列生物学上重要的氟和哌嗪基取代的喹喔啉。这种开发的方法还提供了一种新型串联合成喹喔啉酮 9 的途径。
• Dimethyl Sulfoxide Involved One-Pot Synthesis of Quinoxaline Derivatives
  作者：Caixia Xie、Zeyuan Zhang、Danyang Li、Jian Gong、Xushuang Han、Xuan Liu、Chen Ma

  DOI：10.1021/acs.joc.6b02977

  日期：2017.4.7

  An efficient, green, and novel method for the synthesis of N-heterocycle-fused quinoxalines is reported herein. Dimethyl sulfoxide was used as both a reactant and a solvent in this reaction. A wide range of products in moderate to excellent yields were obtained, including pyrrolo[1,2-a]quinoxalines, indolo[1,2-a]quinoxalines, 1H-pyrrolo[3,2-c]quinolines, and benzo[4,5]imidazo[1,2-c]quinazolines.

  本文报道了合成N-杂环融合的喹喔啉的有效，绿色和新颖的方法。在该反应中，二甲基亚砜既用作反应物又用作溶剂。获得了各种中等至优异收率的产品，包括吡咯并[1,2- a ]喹喔啉，吲哚并[1,2- a ]喹喔啉，1 H-吡咯并[3,2- c ]喹啉和苯并[ 4,5]咪唑并[1,2- c ]喹唑啉。
• Synthesis of Hydroxylated Polycyclic Pyrrolo/Indolo[1,2-<i>a</i>]quinoxaline-Fused Lactam Derivatives via PhI(OAc)₂-Promoted 1,2-Bond Migration and Solvent Insertion
  作者：Subhro Mandal、Animesh Pramanik

  DOI：10.1021/acs.joc.2c01008

  日期：2022.7.15

  PhI(OAc)2-mediated ring expansion via 1,2-bond migration and concurrent solvent insertion generate hydroxylated polycyclic pyrrolo/indolo[1,2-a]quinoxaline-fused lactam derivatives in a highly diastereoselective fashion from spiro-fused quinoxalines in good-to-excellent yield. X-ray crystal structure analysis reveals that the polycyclic lactams are nonplanar molecules devoid of any symmetry as they

  PhI(OAc) 2介导的环扩展通过 1,2-键迁移和并发溶剂插入以高度非对映选择性的方式从螺稠合喹喔啉生成羟基化多环吡咯并吲哚[1,2 - a ]喹喔啉稠合内酰胺衍生物- 以优异的产量。X 射线晶体结构分析表明，多环内酰胺是没有任何对称性的非平面分子，因为它们具有一个或两个轴向手性联芳基或N-芳基吲哚基桥以及一个位于桥头碳上的手性中心。
• Fragment-Based Discovery of a Qualified Hit Targeting the Latency-Associated Nuclear Antigen of the Oncogenic Kaposi’s Sarcoma-Associated Herpesvirus/Human Herpesvirus 8
  作者：Philine Kirsch、Valentin Jakob、Kevin Oberhausen、Saskia C. Stein、Ivano Cucarro、Thomas F. Schulz、Martin Empting

  DOI：10.1021/acs.jmedchem.8b01827

  日期：2019.4.25

  The latency-associated nuclear antigen (LANA) is required for latent replication and persistence of Kaposi's sarcoma-associated herpesvirus/human herpesvirus 8. It acts via replicating and tethering the virus episome to the host chromatin and exerts other functions. We conceived a new approach for the discovery of antiviral drugs to inhibit the interaction between LANA and the viral genome. We applied a biophysical screening cascade and identified the first LANA binders from small, structurally diverse compound libraries. Starting from a fragment-sized scaffold, we generated optimized hits via fragment growing using a dedicated fluorescence-polarization-based assay as the structure activity-relationship driver. We improved compound potency to the double-digit micromolar range. Importantly, we qualified the resulting hit through orthogonal methods employing EMSA, STD-NMR, and MST methodologies. This optimized hit provides an ideal starting point for subsequent hit-to-lead campaigns providing evident target-binding, suitable ligand efficiencies, and favorable physicochemical properties.