N-tert-butyl-2-isopropylimidazolo[1,2-a]pyridin-3-amine | 552855-93-3

• 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: N-tert-butyl-2-isopropylimidazolo[1,2-a]pyridin-3-amine
• 英文别名: N-tert-butyl-2-isopropylimidazo[1,2-a]pyridin-3-amine；N-tert-butyl-2-propan-2-ylimidazo[1,2-a]pyridin-3-amine
• CAS: 552855-93-3
• 化学式: C₁₄H₂₁N₃
• 分子量: 231.341
• InChiKey: FHRPRKHATGUNKF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  29.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-tert-butyl-2-isopropylimidazolo[1,2-a]pyridin-3-amine 在 potassium tert-butylate 、 copper diacetate 作用下， 以 对二甲苯 为溶剂， 反应 8.0h， 以54%的产率得到N-(pyridin-2-yl)isobutyramide
  参考文献：
  名称：

  一种N-杂环酰胺衍生物的合成方法

  摘要：

  本发明公开了一种N‑杂环酰胺衍生物的合成方法，反应通式如下。即：以咪唑并杂环胺类化合物I为原料，在催化剂的作用下，在碱性条件下于有机溶剂中和80～200℃的条件下与空气或氧气发生反应开环，同时插入氧原子，生成如反应通式所示的N‑杂环酰胺衍生物II。本方法具有操作简单、收率高、底物普适性广等特点。

  公开号：

  CN109053558B
• 作为产物：
  描述：

  异氰酸叔丁酯 、 [2-Methyl-prop-(E)-ylidene]-pyridin-2-yl-amine 在 三甲基氯硅烷 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 0.5h， 生成 N-tert-butyl-2-isopropylimidazolo[1,2-a]pyridin-3-amine
  参考文献：
  名称：

  tert-Butyl isocyanide revisited as a convertible reagent in the Groebke–Blackburn reaction

  摘要：

  tert-Butyl isocyanide can serve as the convertible reagent in Groebke-Blackburn multi-component reactions. The effective removal of the tert-butyl group from the resulting imidazo[1,2-a]azines and -azoles is achieved on a gram scale in two steps without chromatographic purification. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2008.10.046

文献信息

• Multicomponent synthesis of imidazo[1,2-a]pyridines using catalytic zinc chloride
  作者：Amanda L. Rousseau、Pulane Matlaba、Christopher J. Parkinson

  DOI：10.1016/j.tetlet.2007.04.008

  日期：2007.6

  The novel use of zinc chloride to catalyze the one-pot, three component synthesis of imidazo[1,2-a]pyridines from a range of substrates using either conventional heating or microwave irradiation is described. This methodology affords a number of imidazo[1,2-a]pyridines in reasonable yields and short reaction times without any significant optimization of the reaction conditions.

  描述了使用常规加热或微波辐照从一系列底物上催化氯化锌催化一锅，三组分合成咪唑并[1,2- a ]吡啶的新方法。该方法以合理的产率和短的反应时间提供了许多咪唑并[1,2- a ]吡啶，而没有对反应条件进行任何显着的优化。
• Towards molecular diversity: dealkylation of tert-butyl amine in Ugi-type multicomponent reaction product establishes tert-butyl isocyanide as a useful convertible isonitrile
  作者：Sankar K. Guchhait、Chetna Madaan

  DOI：10.1039/c0ob00022a

  日期：——

  With the development of a novel microwave-assisted one-pot tandem de-tert-butylation of tert-butyl amine in an Ugi-type multicomponent reaction product, tert-butyl isocyanide as a useful convertible isonitrile has been explored for the first time affording access to molecular diversity of pharmaceutically-important polycyclic N-fused imidazo-heterocycles.

  随着一种新型微波辅助单锅联产去叔丁基化的开发，在Ugi型多组分反应生成物中，叔丁基异氰酸酯作为一种有用的可转化异腈首次被探讨，从而获得了制药上重要的多环氮融合咪唑杂环的分子多样性。
• Groebke‐Blackburn‐Bienaymé Multicomponent Reaction Catalysed by Reusable Brønsted‐Acidic Ionic Liquids
  作者：Nicolas S. Anjos、Agáta I. Chapina、Ana R. Santos、Peter Licence、Luiz S. Longo

  DOI：10.1002/ejoc.202200615

  日期：2022.10.26

  Groebke-Blackburn-Bienaymé multicomponent reactions can be efficiently catalysed by Brønsted acidic ionic liquids for the synthesis of imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles in moderate to excellent yields (42–93 %), either under thermal or microwave heating. The homogeneous acidic catalyst can be recycled and reused in four consecutive reaction cycles.

  Brønsted 酸性离子液体可有效催化 Groebke-Blackburn-Bienaymé 多组分反应合成咪唑并[1,2- a ]吡啶和咪唑并[ 2,1- b ]噻唑，产率适中（42-93%） ，在热或微波加热下。均相酸性催化剂可以在四个连续的反应循环中回收和重复使用。
• A Comparative Study on the Groebke-Blackburn-Bienaymé Three-Component Reaction Catalyzed by Rare Earth Triflates under Microwave Heating
  作者：Gabriela Santos、Nicolas Anjos、Miguel Gibeli、Guilherme Silva、Pâmela Fernandes、Everton Fiorentino、Luiz Longo Jr.

  DOI：10.21577/0103-5053.20200028

  日期：——

  Over the last twenty years. the Groebke-Blackburn-Bienayme (GBB) reaction has been emerged as a powerful tool to access different nitrogen-based heterocycles as privileged scaffolds in medicinal chemistry. This multicomponent reaction is usually catalyzed by ordinary Bronsted or Lewis acid catalysts. Herein, we present a comparative study on the catalytic efficiencies of different rare earth triflates in GBB reactions under microwave heating, involving 2-aminopyridine or 2-aminothiazole, as aminoazole component, and different aldehydes and aliphatic isocyanides. The use of gadolinium(III) triflate as cheaper alternative catalyst for the most commonly used scandium(III) titillate was acknowledged for the first time, and a library of twenty three imidazo[1,2-a]pyridines and imidazo[2,1-b]thiazoles could be obtained in good to excellent yields.