2-(3,4-dimethylphenyl)-3-methylimidazo[1,2-a]pyridine | 1426079-95-9

• 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-(3,4-dimethylphenyl)-3-methylimidazo[1,2-a]pyridine
• CAS: 1426079-95-9
• 化学式: C₁₆H₁₆N₂
• 分子量: 236.316
• InChiKey: FTTUZRAFOCPNQD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  17.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-氨基吡啶 、 1,2-Dimethyl-4-((E)-2-nitro-propenyl)-benzene 在 iron(II) chloride 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 7.0h， 以51%的产率得到2-(3,4-dimethylphenyl)-3-methylimidazo[1,2-a]pyridine
  参考文献：
  名称：

  Iron(II)-Catalyzed Denitration Reaction: Synthesis of 3-Methyl-2-arylimidazo[1,2-a]pyridine Derivatives from Aminopyridines and 2-Methylnitroolefins

  摘要：

  A variety of ways to synthesize imidazo[1,2-a]pyridines have been reported and many approaches are devoted to the functionalization of imidazo[1,2-a]pyridines. However, the use of a denitration reaction in the synthesis of imidazo[1,2-a]pyridines has not been reported. We report here the iron-catalyzed synthesis of 3-methyl-2-arylimidazo [1,2-a] pyridine derivatives from aminopyridines and 2-methyl-nitroolefins. The procedure, using FeCl2 as catalyst, is simple and inexpensive. Various functional groups are tolerated and provide the products in good yields.

  DOI：

  10.1055/s-0032-1317685

文献信息

• Copper-Catalyzed Aerobic Oxidative Cyclization of Ketoxime Acetates with Pyridines for the Synthesis of Imidazo[1,2-a]pyridines
  作者：Zhi-Hui Ren、Zheng-Hui Guan、Mi-Na Zhao、Yukun Yi、Yao-Yu Wang

  DOI：10.1055/s-0035-1561950

  日期：——

  copper(I)-catalyzed aerobic oxidative coupling of ketoxime acetates with simple pyridines for the synthesis of imidazo[1,2-a]pyridines has been developed. This reaction tolerates a wide range of functional groups and it affords a series of valuable imidazo[1,2-a]pyridines in high yields under mild conditions. A copper(I)-catalyzed aerobic oxidative coupling of ketoxime acetates with simple pyridines for the synthesis

  摘要 已开发出铜（I）催化的酮肟肟乙酸酯与简单的吡啶的好氧氧化偶联，用于合成咪唑并[1,2- a ]吡啶。该反应可耐受各种官能团，并且在温和条件下以高收率提供了一系列有价值的咪唑并[1,2- a ]吡啶。 已开发出铜（I）催化的酮肟肟乙酸酯与简单的吡啶的好氧氧化偶联，用于合成咪唑并[1,2- a ]吡啶。该反应可耐受各种官能团，并且在温和条件下以高收率提供了一系列有价值的咪唑并[1,2- a ]吡啶。
• Iron(III)-Catalyzed Denitration Reaction: One-Pot Three-Component Synthesis of Imidazo[1,2-<i>a</i>]pyridine Derivatives
  作者：Hao Yan、Yuling Wang、Congming Pan、Hao Zhang、Sizhuo Yang、Xiaoyu Ren、Jian Li、Guosheng Huang

  DOI：10.1002/ejoc.201301658

  日期：2014.5

  An iron(III)-catalyzed one-pot three-component cross-coupling nitration reaction of 2-aminopyridines, aldehydes and nitroalkanes, straightforwardly forms imidazo[1,2-a]pyridine derivatives and is described in this report. The system shows good functional-group tolerance and proceeds smoothly in moderate to good yields.

  铁 (III) 催化的 2-氨基吡啶、醛和硝基烷烃的一锅三组分交叉偶联硝化反应直接形成咪唑并 [1,2-a] 吡啶衍生物，并在本报告中进行了描述。该系统显示出良好的官能团耐受性，并以中等至良好的产率顺利进行。
• Polyethylene Gylcol (PEG-400) as an Efficient and Recyclable Reaction Medium for One-Pot Three-Component Synthesis of Imidazo[1,2-a]pyridine Derivatives
  作者：P. Ramesh、K. Bhaskar

  DOI：10.14233/ajchem.2016.20061

  日期：——

  Polyethylene glycol (PEG) was found to be an inexpensive nontoxic and effective medium for the one-pot three-component synthesis of imidazo[1,2-a]pyridine derivatives under catalyst-free conditions in excellent yields. Environmental acceptability, low cost, high yields and recyclability of the polyethylene glycol are the important features of this protocol.

  研究发现，聚乙二醇（PEG）是一种廉价、无毒且有效的介质，可在无催化剂条件下单锅三组分合成咪唑并[1,2-a]吡啶衍生物，且收率极高。环境可接受性、低成本、高产率以及聚乙二醇的可回收性是该方案的重要特点。