4-(pyridine-3-ylethynyl)aniline | 1191900-32-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4-(pyridine-3-ylethynyl)aniline
• 英文别名: 4-(pyridin-3-ylethynyl)aniline；4-(2-Pyridin-3-ylethynyl)aniline
• CAS: 1191900-32-9
• 化学式: C₁₃H₁₀N₂
• 分子量: 194.236
• InChiKey: MPHAKDQQJXGSCA-UHFFFAOYSA-N

物化性质

• 沸点：
  391.4±22.0 °C(Predicted)
• 密度：
  1.19±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  38.9
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  二碳酸二叔丁酯 、 4-(pyridine-3-ylethynyl)aniline 在 sodium hexamethyldisilazane 作用下， 以 四氢呋喃 为溶剂， 以74%的产率得到tert-butyl (4-(pyridin-3-ylethynyl)phenyl)carbamate
  参考文献：
  名称：

  Structure−Activity Relationships of Substituted 1-Pyridyl-2-phenyl-1,2-ethanediones: Potent, Selective Carboxylesterase Inhibitors

  摘要：

  Inhibition of intestinal carboxylesterases may allow modification of the pharmacokinetics/pharmacodynamic profile of existing drugs by altering half-life or toxicity. Since previously identified diarylethane-1,2-dione inhibitors are decidedly hydrophobic, a modified dione scaffold was designed and elaborated into a > 300 member library, which was subsequently screened to establish the SAR for esterase inhibition. This allowed the identification of single digit nanomolar hiCE inhibitors that showed improvement in selectivity and measured solubility.

  DOI：

  10.1021/jm101101q
• 作为产物：
  描述：

  3-溴吡啶 、 4-乙炔基苯胺 在 copper(l) iodide 、 二(氰基苯)二氯化钯 、 二异丙胺 、 tri tert-butylphosphoniumtetrafluoroborate 作用下， 以 1,4-二氧六环 为溶剂， 以72%的产率得到4-(pyridine-3-ylethynyl)aniline
  参考文献：
  名称：

  Structure−Activity Relationships of Substituted 1-Pyridyl-2-phenyl-1,2-ethanediones: Potent, Selective Carboxylesterase Inhibitors

  摘要：

  Inhibition of intestinal carboxylesterases may allow modification of the pharmacokinetics/pharmacodynamic profile of existing drugs by altering half-life or toxicity. Since previously identified diarylethane-1,2-dione inhibitors are decidedly hydrophobic, a modified dione scaffold was designed and elaborated into a > 300 member library, which was subsequently screened to establish the SAR for esterase inhibition. This allowed the identification of single digit nanomolar hiCE inhibitors that showed improvement in selectivity and measured solubility.

  DOI：

  10.1021/jm101101q

文献信息

• Highly Convenient, Clean, Fast, and Reliable Sonogashira Coupling Reactions Promoted by Aminophosphine-Based Pincer Complexes of Palladium Performed under Additive- and Amine-Free Reaction Conditions
  作者：Jeanne L. Bolliger、Christian M. Frech

  DOI：10.1002/adsc.200900112

  日期：2009.4

  Abstractmagnified imageSequential addition of 1,1′,1′′‐phosphinetriyltripiperidine and 1,3‐diaminobenzene or resorcinol to toluene solutions of (cyclooctadiene)palladium dichloride [Pd(cod)(Cl)2] under nitrogen in “one pot” almost quantitatively yielded the aminophosphine‐based pincer complexes [C6H3‐2,6‐(XPpiperidinyl}2)2]Pd(Cl)} (X=NH 1; X=O 2). Complex 1 (and to a minor extent 2) proved to be efficient Sonogashira catalysts, which allow the quantitative coupling of various electronically deactivated and/or sterically hindered and functionalized aryl iodides and aryl bromides with several alkynes as coupling partners within very short reaction times and low catalyst loadings. Importantly, in contrast to most of the Sonogashira catalysts, which either are both air‐ and moisture‐sensitive and/or require the addition of co‐catalysts, such as copper(I) iodide [CuI], for example, or a large excess of an amine, the coupling reactions were carried out without the use of amines, co‐catalysts or other aditives and without exclusion of air and moisture. Moreover, the desired products were exclusively formed (no side‐products were detected) without employing an excess of one of the substrates. Ethylene glycol and potassium phosphate (K3PO4) were found to be the ideal solvent and base for this transformation. Experimental observations strongly indicate that palladium nanoparticles are not the catalytically active form of 1 and 2. On the other hand, their transformation into another homogeneous catalytically active species cannot be excluded.