| 1084725-66-5

• CAS: 1084725-66-5
• 化学式: C₃₄H₄₄Br₄Cu₄N₄O₄
• 分子量: 1146.55
• InChiKey: RYNCBBJYWZTLGF-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  {Cu5(2,4,6-trimethylphenyl)5} 、 3-(2,6-di-isopropylphenyl)-1-(O-trimethylsilyl-acetato)-imidazolium bromide 以 四氢呋喃 为溶剂， 生成
  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