Phenyl-bis[4-[2-[tris[3-[ethyl(dimethyl)silyl]propyl]silyl]ethyl]phenyl]phosphane | 908375-67-7

• 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: Phenyl-bis[4-[2-[tris[3-[ethyl(dimethyl)silyl]propyl]silyl]ethyl]phenyl]phosphane
• 英文别名: phenyl-bis[4-[2-[tris[3-[ethyl(dimethyl)silyl]propyl]silyl]ethyl]phenyl]phosphane
• CAS: 908375-67-7
• 化学式: C₆₄H₁₂₃PSi₈
• 分子量: 1148.34
• InChiKey: GSEVPSUSYAYZGY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  22.14
• 重原子数：
  73
• 可旋转键数：
  39
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.72
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  dichloro(cycloocta-1,5-diene)palladium (II) 、 Phenyl-bis[4-[2-[tris[3-[ethyl(dimethyl)silyl]propyl]silyl]ethyl]phenyl]phosphane 以 二氯甲烷 为溶剂， 以76%的产率得到
  参考文献：
  名称：

  Carbosilane Dendrons as Solubilizers of Metal Complexes in Supercritical Carbon Dioxide

  摘要：

  Palladium complexes of general formula [PdCl2(L)(2)], 3a-c, were synthesized by reaction of [PdCl2(COD)] (COD = 1,5-cyclooctadiene) with the appropriate functionalized phosphine L = [P(C6H5) n((C6H4CH2CH2Si(CH2CH2CH2SiEtMe2)(3))(3-n))] (n = 2, 2a; 1, 2b; 0, 2c, respectively), which integrated carbosilane dendritic wedges attached to the para-carbon atom of the phenyl group. As a result of the inclusion of the carbosilane dendrons, the solubility of the corresponding palladium complexes 3 in supercritical carbon dioxide (scCO(2)) was increased in comparison with the palladium complex containing a PPh3 ligand, which showed negligible solubility. The employment of these complexes as precatalysts in a selected Heck coupling reaction in scCO(2) was investigated. Good activities were found for 3a-c in such a medium due to the acquired solubility, in contrast with the palladium complex containing PPh3, which showed no activity.

  DOI：

  10.1021/om060303n

文献信息

• Carbosilane Dendrons as Solubilizers of Metal Complexes in Supercritical Carbon Dioxide
  作者：Francisco Montilla、Agustín Galindo、Román Andrés、Marta Córdoba、Ernesto de Jesús、Carles Bo

  DOI：10.1021/om060303n

  日期：2006.8.1

  Palladium complexes of general formula [PdCl2(L)(2)], 3a-c, were synthesized by reaction of [PdCl2(COD)] (COD = 1,5-cyclooctadiene) with the appropriate functionalized phosphine L = [P(C6H5) n((C6H4CH2CH2Si(CH2CH2CH2SiEtMe2)(3))(3-n))] (n = 2, 2a; 1, 2b; 0, 2c, respectively), which integrated carbosilane dendritic wedges attached to the para-carbon atom of the phenyl group. As a result of the inclusion of the carbosilane dendrons, the solubility of the corresponding palladium complexes 3 in supercritical carbon dioxide (scCO(2)) was increased in comparison with the palladium complex containing a PPh3 ligand, which showed negligible solubility. The employment of these complexes as precatalysts in a selected Heck coupling reaction in scCO(2) was investigated. Good activities were found for 3a-c in such a medium due to the acquired solubility, in contrast with the palladium complex containing PPh3, which showed no activity.