| 177489-61-1

• CAS: 177489-61-1
• 化学式: C₄₈H₄₄Br₄N₄O₄Pd₄
• 分子量: 1486.2
• InChiKey: HTBYDEBRQCOYNY-JLPXOYHMSA-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

• 作为反应物：
  描述：

  ammonium hexafluorophosphate 、 、 1,1-双(二苯基膦)乙烯 以 丙酮 为溶剂， 以77%的产率得到
  参考文献：
  名称：

  The chemistry of N-benzylidene-1,4-phenylenediamine palladacycles: The crystal and molecular structure of the first tetranuclear palladacycle with bridging Ph2PCH2PPh2 ligands

  摘要：

  The reaction of the tetranuclear halide-bridged complexes 1-2(a-d) with Ph2PCH2PPh2 (dppm) or Ph2PC(=CH2)PPh2 (vdpp) in 1:2 molar ratio and NH4PF6 afforded the novel tetarnuclear palladacycles 3-6 (a, c, d) as 1:2 electrolytes with bridging diphosphine and halogen ligands. The structure of 4a has been determined by X-ray diffraction analysis, and represents the first example of a tetranuclear palladacycle with bridging dppm and halogen ligands. Reaction of 1-2(a-d) with (Ph2PCH2CH2)(2)PPh (triphos) in 1:2 molar ratio gave 7(a-d) bearing two pentacoordinated palladium atoms. The structure of 7a, as determined by X-ray diffraction analysis, shows the distorted square pyramidal geometry around the metal centers. Treatment of 1-2(a-d) with dppm, vdpp or Ph2PN(Me)PPh2 (dppma) in 1:4 molar ratio gave the dinuclear palladacycles 8-10(a-d) with a chelating diphosphine ligand at each metal center; further treatment of 9(a-c) with the nucleophiles pyrrolidine, piperidine, morpholine or 4-methylpiperidine gave the Michael addition derivatives 11-12(a-c), 13b, 13c and 14c, promoted by the withdrawing effect of the palladacycle which activates the C=CH2 double bond. (C) 2009 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2008.12.016