(E)-1-(4-methoxystyryl)-1H-imidazole | 1042728-02-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: (E)-1-(4-methoxystyryl)-1H-imidazole
• 英文别名: 1-[(E)-2-(4-methoxyphenyl)ethenyl]imidazole
• CAS: 1042728-02-8
• 化学式: C₁₂H₁₂N₂O
• 分子量: 200.24
• InChiKey: MTDZTVUULMAWEG-SOFGYWHQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  15
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  27
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  咪唑 、 1-((E)-2-溴乙烯基)-4-甲氧基苯 在 copper(l) iodide 、 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 36.0h， 以57%的产率得到(E)-1-(4-methoxystyryl)-1H-imidazole
  参考文献：
  名称：

  CuI-Catalyzed Cross-Coupling Reaction of (E)-Vinyl Bromides with Nitrogen-Containing Heterocycles

  摘要：

  一种高效且直接的铜催化方法可以在无钯和无配体条件下，以高产率（高达95%）实现各种取代的（E）-乙烯基溴与N-亲核试剂的乙烯基化反应。值得注意的是，我们的方案保留了这些乙烯基卤化物的双键几何结构。

  DOI：

  10.1055/s-2008-1077955

文献信息

• Cu2O-catalyzed Ullmann-type reaction of vinyl bromides with imidazole and benzimidazole
  作者：Guodong Shen、Xin Lv、Weixing Qian、Weiliang Bao

  DOI：10.1016/j.tetlet.2008.04.163

  日期：2008.7

  Cu2O was found to be an efficient and economical metal catalyst in the Ullmann cross-coupling reaction of vinyl bromides with imidazole or benzimidazole. The system Cu2O/ethyl 2-oxocyclohexanecarboxylate showed high catalytic activity in MeCN at 80–90 °C. The reaction gave the corresponding coupling products in good to excellent yields.

  在乙烯基溴与咪唑或苯并咪唑的Ullmann交叉偶联反应中，发现Cu 2 O是一种有效且经济的金属催化剂。Cu 2 O / 2-氧代环己烷甲酸乙酯体系在80–90°C的MeCN中显示出高催化活性。该反应以良好至优异的产率得到相应的偶联产物。
• Anti-Markovnikov stereoselective hydroamination and hydrothiolation of (hetero)aromatic alkynes using a metal-free cyclic trimeric phosphazene base
  作者：Na Zhao、Chengdong Lin、Lirong Wen、Zhibo Li

  DOI：10.1016/j.tet.2019.04.075

  日期：2019.6

  Hydroamination and hydrothiolation are the most efficient and completely atom-economical process to construct important enamine and vinyl sulfide intermediates in pharmaceutical and organic chemistry. The cyclic trimeric phosphazene base (CTPB) showed great catalytic activity for the anti-Markovnikov stereoselective hydroamination and hydrothiolation of alkynes in good to excellent yields. A broad

  加氢胺化和加氢硫醇化是在药物和有机化学中构建重要的烯胺和乙烯基硫化物中间体的最有效且完全原子经济的过程。环状三聚磷腈碱（CTPB）对炔烃的抗马尔可夫尼科夫立体选择性加氢胺化和加氢硫醇化反应显示出很高的催化活性，收率良好。炔烃和亲核试剂的广泛底物范围得到证实，包括芳基和杂芳基炔烃，末端和内部炔烃，不同的N-杂环，硫醇和苯硫酚。这种通用且具有成本效益的方法，具有良好的立体选择性和出色的官能团耐受性，为炔烃的有机催化加氢官能化提供了新机会。
• Iron-Catalyzed Cross-Coupling Reaction of Vinyl Bromides or Chlorides with Imidazoles in the Absence of Ligands and Additives
  作者：Jincheng Mao、Guanlei Xie、Jiaming Zhan、Qiongqiong Hua、Daqing Shi

  DOI：10.1002/adsc.200900066

  日期：2009.6

  Abstractmagnified imageHighly effective coupling of imidazoles with (E)‐vinyl halides can be achieved by using readily available iron catalysts under ligand‐free, copper‐free and palladium‐free conditions. Coupling of (E)‐vinyl bromides led to (Z)‐products predominantly, while the reactions of (E)‐vinyl chlorides afforded (E)‐isomers as the major products.
• Copper oxide nanoparticles catalyzed vinylation of imidazoles with vinyl halides under ligand-free conditions
  作者：V. Prakash Reddy、A. Vijay Kumar、K. Rama Rao

  DOI：10.1016/j.tetlet.2010.04.022

  日期：2010.6

  Recyclable copper oxide nanoparticles catalyzed most efficient and straightforward protocol for the vinylation of imidazoles with vinyl halides under ligand-free conditions. Utilizing this protocol various imidazoles were cross-coupled with different substituted vinyl halides to get the corresponding products in excellent yields with the retention configuration. (C) 2010 Elsevier Ltd. All rights reserved.