3-benzylimidazo[1,2-a]pyridine | 1228040-49-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并吡啶类
• 英文名称: 3-benzylimidazo[1,2-a]pyridine
• CAS: 1228040-49-0
• 化学式: C₁₄H₁₂N₂
• 分子量: 208.263
• InChiKey: ACHBZUJIVIHFRS-UHFFFAOYSA-N

物化性质

• 熔点：
  132 °C
• 密度：
  1.10±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 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：

  在 水 作用下， 反应 12.0h， 以62%的产率得到3-benzylimidazo[1,2-a]pyridine
  参考文献：
  名称：

  Water mediated deprotective intramolecular hydroamination of N-propargylaminopyridines: synthesis of imidazo[1,2-a]pyridines

  摘要：

  Metal-free synthesis of substituted imidazole [1,2-alpha]dpyridines from deprotective N-(prop-2-yn-1-yl)pyridin-2-amines in water is elucidated. Electron releasing substituents on pyridine ring provided pure products in quantitative yields without separation by column chromatography. (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2013.08.112

文献信息

• Silver-assisted palladium-catalyzed one-pot synthesis of 3-(hetero)arylmethyl derivatives of imidazo[1,2-a]pyridines
  作者：Krishna Chaitanya Kasina、Siva Kumar Rapeti、Arghya Sadhukhan、Mahesh Ranga、Arani Pal、Saritha Birudaraju、Siva rao Tirukkovalluri

  DOI：10.1007/s10593-021-02941-3

  日期：2021.5

  3-(Hetero)arylmethyl derivatives of imidazo[1,2-a]pyridine have been synthesized by a novel one-pot method consisting of the Sonogashira coupling of tert-butyl prop-2-yn-1-yl(pyridin-2-yl)carbamate with different substituted (hetero)aryl bromides and cyclization of the in situ obtained intermediate substituted (hetero)aryl acetylene derivatives.

  咪唑并[1,2- a ]吡啶的3-（杂）芳甲基衍生物已通过一种新型的一锅法合成，该方法由叔丁基丙-2-yn-1-基（吡啶-2-）的Sonogashira偶联组成。基)氨基甲酸酯与不同的取代(杂)芳基溴化物和原位环化得到中间体取代的(杂)芳基乙炔衍生物。
• Metal- and base-free synthesis of imidazo[1,2-<i>a</i>]pyridines through elemental sulfur-initiated oxidative annulation of 2-aminopyridines and aldehydes
  作者：Jing Tan、Penghui Ni、Huawen Huang、Guo-Jun Deng

  DOI：10.1039/c8ob00981c

  日期：——

  The elemental sulfur-promoted oxidative cyclization reaction for the efficient synthesis of substituted imidazo[1,2-a]pyridines has been developed. Easily available 2-aminopyridines and aldehydes were directly assembled in a highly atom-economical fashion through oxidative annulation under metal- and base-free conditions. Besides arylacetaldehydes, aliphatic aldehydes were also compatible with this

  已经开发出用于有效合成取代的咪唑并[1,2- a ]吡啶的元素硫促进的氧化环化反应。容易获得的2-氨基吡啶和醛类在无金属和无碱条件下通过氧化环化法以高度原子经济的方式直接组装。除芳基乙醛外，脂族醛也与该体系相容，以具有克级合成能力的优异收率递送烷基取代的咪唑并[1,2- a ]吡啶。
• General and Efficient Copper-Catalyzed Three-Component Coupling Reaction towards Imidazoheterocycles: One-Pot Synthesis of Alpidem and Zolpidem
  作者：Natalia Chernyak、Vladimir Gevorgyan

  DOI：10.1002/anie.200907291

  日期：2010.4.1

  Three is not a crowd: A method for the construction of imidazopyridine, imidazoquinoline, and imidazoisoquinoline frameworks has been developed. The synthetic utility of this method was demonstrated in a highly efficient one‐pot synthesis of the drugs alpidem and zolpidem (see scheme).

  三不群：开发了咪唑并吡啶、咪唑并喹啉和咪唑并异喹啉骨架的构建方法。该方法的合成效用在药物阿吡坦和唑吡坦的高效一锅合成中得到了证明（见方案）。
• I₂-catalyzed intramolecular oxidative amination of C(sp³)–H bond: efficient access to 3-acylimidazo[1,2-<i>a</i>]pyridines under neat condition
  作者：Lilan Huang、Wenqing Yin、Jian Wang、Chunfang Gan、Yanmin Huang、Chusheng Huang、Yimiao He

  DOI：10.1039/c8ra10118c

  日期：——

  An efficient and “green” protocol for the synthesis of 3-acylimidazo[1,2-a]pyridines through intramolecular oxidative α-amination of carbonyl compounds has been developed. The reaction proceeds smoothly utilizing I2 as a catalyst and H2O2 as an oxidant under neat condition with broad substrate scope. Several complex nitrogen-containing fused rings are conveniently constructed, which are not easy to

  已经开发了一种通过羰基化合物的分子内氧化 α-胺化合成 3-酰基咪唑并[1,2- a ]吡啶的有效且“绿色”的方案。以I 2为催化剂，H 2 O 2为氧化剂，反应在纯净条件下顺利进行，底物范围广。几个复杂的含氮稠环结构方便，传统方法不易获得。
• Synthesis of Imidazo[1,2-<i>a</i>]pyridines: “Water-Mediated” Hydroamination and Silver-Catalyzed Aminooxygenation
  作者：Darapaneni Chandra Mohan、Sadu Nageswara Rao、Subbarayappa Adimurthy

  DOI：10.1021/jo3025303

  日期：2013.2.1

  Aqueous syntheses of methylimidazo[1,2-a]pyridines without any deliberate addition of catalyst are reported. Imidazo[1,2-a]pyrazine and imidazo[2,1-a]isoquinoline were also obtained in good yields under similar conditions. With acetonitrile as solvent, Ag-catalyzed intra-molecular aminooxygenation produced imidazo[1,2-a]pyridine-3-carbaldehydes in moderate to good yields.