(4'-bromo-3,3',5,5'-tetraisopropyl-4-biphenyl)-bis(2,4,6-triisopropylphenyl)phosphine | 856197-67-6

• 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: (4'-bromo-3,3',5,5'-tetraisopropyl-4-biphenyl)-bis(2,4,6-triisopropylphenyl)phosphine
• CAS: 856197-67-6
• 化学式: C₅₄H₇₈BrP
• 分子量: 838.091
• InChiKey: KWFFASSVKYGVJC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  17.11
• 重原子数：
  56.0
• 可旋转键数：
  14.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  (4'-bromo-3,3',5,5'-tetraisopropyl-4-biphenyl)-bis(2,4,6-triisopropylphenyl)phosphine 、 chlorobis(2,4,6-triisopropylphenyl)phosphine 在 叔丁基锂 、 copper(l) chloride 作用下， 以 四氢呋喃 、 正戊烷 为溶剂， 反应 32.5h， 以13%的产率得到4,4'-bis[bis(2,4,6-triisopropylphenyl)phosphino]-3,3',5,5'-tetraisopropylbiphenyl
  参考文献：
  名称：

  Synthesis of crowded triarylphosphines carrying functional sites

  摘要：

  4,4'-Diphosphinobiaryls and 1,3- and 1,4-borylphosphinobenzenes carrying crowded triarylphosphine moieties were synthesized by reaction of the corresponding diarylchlorophosphine with an arylcopper(I) reagent. Intramolecular interaction of the phosphorus redox center with the other phosphorus or the boron redox center was investigated by cyclic voltammetry. 4,4'-Diphosphinobiaryls displayed two-step reversible redox waves with slight differences of the oxidation potentials due to weak interaction between two phosphorus redox centers across 4,4'-biarylene linkage. Borylphosphinobenzenes showed two step redox waves corresponding to oxidation at the phosphorus and reduction at the boron. Although significant interaction between the phosphorus and boron redox centers was not observed in the cyclic voltammograms due to large difference of the redox potentials between phosphorus and boron redox centers, an absorption due to weakly interacting phosphorus and boron was observed in the UV-Vis spectrum of the 1,4-borylphosphinobenzene. (c) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2004.10.031
• 作为产物：
  描述：

  2-溴-1,3,5-三异丙苯 在 正丁基锂 、 叔丁基锂 、 三氯化磷 作用下， 以 四氢呋喃 、 正己烷 、 正戊烷 为溶剂， 反应 20.58h， 生成 (4'-bromo-3,3',5,5'-tetraisopropyl-4-biphenyl)-bis(2,4,6-triisopropylphenyl)phosphine
  参考文献：
  名称：

  Synthesis of crowded triarylphosphines carrying functional sites

  摘要：

  4,4'-Diphosphinobiaryls and 1,3- and 1,4-borylphosphinobenzenes carrying crowded triarylphosphine moieties were synthesized by reaction of the corresponding diarylchlorophosphine with an arylcopper(I) reagent. Intramolecular interaction of the phosphorus redox center with the other phosphorus or the boron redox center was investigated by cyclic voltammetry. 4,4'-Diphosphinobiaryls displayed two-step reversible redox waves with slight differences of the oxidation potentials due to weak interaction between two phosphorus redox centers across 4,4'-biarylene linkage. Borylphosphinobenzenes showed two step redox waves corresponding to oxidation at the phosphorus and reduction at the boron. Although significant interaction between the phosphorus and boron redox centers was not observed in the cyclic voltammograms due to large difference of the redox potentials between phosphorus and boron redox centers, an absorption due to weakly interacting phosphorus and boron was observed in the UV-Vis spectrum of the 1,4-borylphosphinobenzene. (c) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2004.10.031