[3-(mesityl)-(1-acetic acid)]-imidazolium bromide | 1084725-78-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: [3-(mesityl)-(1-acetic acid)]-imidazolium bromide
• 英文别名: 1-(carboxymethyl)-3-mesityl-1H-imidazol-3-ium bromide；2-[3-(2,4,6-Trimethylphenyl)imidazol-1-ium-1-yl]acetic acid;bromide
• CAS: 1084725-78-9
• 化学式: Br*C₁₄H₁₇N₂O₂
• 分子量: 325.205
• InChiKey: ZYUOGUSHNKQDFS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.22
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  46.1
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  [3-(mesityl)-(1-acetic acid)]-imidazolium bromide 在 氨 作用下， 反应 0.25h， 以42%的产率得到[3-(mesityl)-(1-α-acetate)]imidazolium
  参考文献：
  名称：

  Copper and palladium complexes with N-heterocyclic carbene ligands functionalised with carboxylate groups

  摘要：

  The new imidazolium salts functionalised with the trimethylsilyl ester group 1a-c, were easily obtained by quaternisation of alkyl- or aryl-imidazoles with trimethylsilyl bromoacetate. Salt 1a was isolated and fully characterised. It reacted with mesityl copper (Cu(5)Mes(5)) under trimethylsilyl abstraction to form the complex 2. Methanolysis of 1a-c gave good yields of the carboxylic acid functionalised imidazolium salts 3a-c. Deprotonation of the latter in liquid ammonia led to the zwitterionic imidazolium carboxylates 4a-c. Reaction of 4a with (Cu(5)Mes(5)) gave solutions from which the insoluble polymeric 5a crystallised slowly. Generation of the carboxylate-functionalised NHC in situ followed by reaction with Pd(OOCCH3)(2) gave the new complex 6a in which the NHC-carboxylate ligand is chelate bidentate. (C) 2008 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2008.07.017
• 作为产物：
  描述：

  甲硅烷基溴代乙酸三甲酯 、 1-(2,4,6-三甲基苯基)-咪唑 在 甲醇 作用下， 以 1,4-二氧六环 、 二氯甲烷 为溶剂， 反应 0.5h， 以65%的产率得到[3-(mesityl)-(1-acetic acid)]-imidazolium bromide
  参考文献：
  名称：

  Copper and palladium complexes with N-heterocyclic carbene ligands functionalised with carboxylate groups

  摘要：

  The new imidazolium salts functionalised with the trimethylsilyl ester group 1a-c, were easily obtained by quaternisation of alkyl- or aryl-imidazoles with trimethylsilyl bromoacetate. Salt 1a was isolated and fully characterised. It reacted with mesityl copper (Cu(5)Mes(5)) under trimethylsilyl abstraction to form the complex 2. Methanolysis of 1a-c gave good yields of the carboxylic acid functionalised imidazolium salts 3a-c. Deprotonation of the latter in liquid ammonia led to the zwitterionic imidazolium carboxylates 4a-c. Reaction of 4a with (Cu(5)Mes(5)) gave solutions from which the insoluble polymeric 5a crystallised slowly. Generation of the carboxylate-functionalised NHC in situ followed by reaction with Pd(OOCCH3)(2) gave the new complex 6a in which the NHC-carboxylate ligand is chelate bidentate. (C) 2008 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2008.07.017

文献信息

• Template-free anion-controlled synthesis of Pd (II) nano-aggregates for the antifouling polymerization of CO and ethylene
  作者：Yu Na Lim、Soo Kyung Chae、Woongbin Yim、Ji-Yong Park、Woojin Yoon、Hoseop Yun、Eunha Kim、Seung Uk Son、Hye-Young Jang

  DOI：10.1002/aoc.4761

  日期：2019.3

  of CO and olefins without fouling. Herein, we describe the analysis of Pd (II) catalysts by dynamic light scattering, atomic force microscopy, X‐ray photoelectron spectroscopy and X‐ray crystallography, and co‐ and terpolymerization results including the catalytic activity, and bulk density and molecular weight of polymers.

  的反应[（domppp）的Pd（OAc）2 ] [= domppp 1,3-双（二- ö -methoxyphenylphosphino）丙烷]和含各种阴离子（BR咪唑鎓官能化的羧酸-，PF 6 - ，的SbF 6 -和BF 4 -）导致在无模板条件下形成纳米级Pd（II）聚集体。可通过改变阴离子来调节聚集体的形成速率，从而影响CO和烯烃的聚合速率而不会结垢。在这里，我们描述了通过动态光散射，原子力显微镜，X射线光电子能谱和X射线晶体学对Pd（II）催化剂的分析，以及共聚和三聚的结果，包括催化活性，堆积密度和分子量。聚合物。