3-pyridyldiphenylphosphine zinc(II) tetraphenylporphyrin | 673485-18-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 3-pyridyldiphenylphosphine zinc(II) tetraphenylporphyrin
• CAS: 673485-18-2
• 化学式: C₆₁H₄₂N₅PZn
• 分子量: 941.402
• InChiKey: YRXABDHAVVVLBK-YKKPBKTHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  zinc tetraphenylporphyrin 、 3-(diphenylphosphino)pyridine 以 氘代氯仿 为溶剂， 生成 3-pyridyldiphenylphosphine zinc(II) tetraphenylporphyrin
  参考文献：
  名称：

  Encapsulation of Transition Metal Catalysts by Ligand-Template Directed Assembly

  摘要：

  Encapsulated transition metal catalysts are presented that are formed by templated self-assembly processes of simple building blocks such as porphyrins and pyridylphosphine and phosphite ligands, using selective metal-ligand interactions. These ligand assemblies coordinate to transition metals, leading to a new class of transition metal catalysts. The assembled catalyst systems were characterized using NMR and UV-vis spectroscopy and were identified under catalytic conditions using high-pressure infrared spectroscopy. Tris-3-pyridylphosphine binds three mesophenyl zinc(II) porphyrin units and consequently forms an assembly with the phosphorus donor atom completely encapsulated. The encapsulated phosphines lead exclusively to monoligated transition metal complexes, and in the rhodium-catalyzed hydroformylation of 1-octene the encapsulation of the catalysts resulted in a 10-fold increase in activity. In addition, the branched aldehyde was formed preferentially (l/b = 0.6), a selectivity that is highly unusual for this substrate, which is attributed to the encapsulation of the transition metal catalysts. An encapsulated rhodium catalyst based on ruthenium(II) porphyrins and tris-meta-pyridyl phosphine resulted in an even larger selectivity for the branched product (l/b = 0.4). These encapsulated catalysts can be prepared easily, and various template ligands and porphyrins, such as tris-3-pyridyl phosphite and ruthenium(l I) porphyrins, have been explored, leading to catalysts with different properties.

  DOI：

  10.1021/ja0386795