[N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-)]YbCl2(DME) | 880487-42-3

• 英文名称: [N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-)]YbCl2(DME)
• CAS: 880487-42-3
• 化学式: C₃₃H₅₁Cl₂N₂O₂Yb
• 分子量: 751.726
• InChiKey: WOLWVZRPNSEDME-MEGHIMFKSA-L

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

• 作为反应物：
  描述：

  [N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-)]YbCl2(DME) 、 哌啶锂 以 正己烷 、 甲苯 为溶剂， 以65%的产率得到[(N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-))Yb(NC5H10)(μ-Cl)]2
  参考文献：
  名称：

  Synthesis and Structural Characterization of β-Diketiminate−Lanthanide Amides and Their Catalytic Activity for the Polymerization of Methyl Methacrylate and ε-Caprolactone

  摘要：

  The synthesis and catalytic activity of lanthanide monoamido complexes supported by a beta-diketiminate ligand are described. Donor solvents, such as DME, can cleave the chloro bridges of the dinuclear beta-diketiminate ytterbium dichloride {[(DIPPh)(2)nacnac]YbCl(mu-Cl)(3)Yb[(DIPPh)(2)nacnac](THF)} (1) [(DIPPh)(2)nacnac = N,N-diisopropylphenyl-2,4-pentanediimine anion] to produce the monomeric complex [(DIPPh)(2)nacnac]YbCl2(DME) (2) in high isolated yield. Complex 2 is a useful precursor for the synthesis of beta-diketiminate-ytterbium monoamido derivatives. Reaction of complex 2 with 1 equiv of LiNPr2i in THF at room temperature, after crystallization in THF/toluene mixed solvent, gave the anionic beta-diketiminate-ytterbium amido complex [(DIPPh)(2)nacnac]Yb(NPr2i)(mu-Cl)(2)Li(THF)(2) (3), while similar reaction of complex 2 with LiNPh2 produced the neutral complex [(DIPPh)(2)nacnac]Yb(NPh2)Cl(THF) (4). Recrystallization of complex 3 from toluene solution at elevated temperature led to the neutral beta-diketiminate-lanthanide amido complex [{(DIPPh)(2)nacnac}Yb(NPr2i)(mu-Cl)](2) (5). The reaction medium has a significant effect on the outcome of the reaction. Complex 2 reacted with 1 equiv of LiNPr2i and LiNC5H10 in toluene to produce directly the neutral beta-diketiminate-lanthanide amido complexes 5 and [{(DIPPh)(2)nacnac}Yb(NC5H10)(THF)(mu-Cl)](2) (6), respectively. These complexes were well characterized, and their crystal structures were determined, Complexes 4-6 exhibited good catalytic activity for the polymerization of methyl methacrylate and c-caprolactone.

  DOI：

  10.1021/ic051158t
• 作为产物：
  描述：

  乙二醇二甲醚 、 ([N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-)]YbCl(μ-Cl)3[N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-)](THF)) 以 乙二醇二甲醚 、 甲苯 为溶剂， 以83%的产率得到[N,N-2,6-diisopropylphenyl-2,4-pentanediimine(1-)]YbCl2(DME)
  参考文献：
  名称：

  Synthesis and Structural Characterization of β-Diketiminate−Lanthanide Amides and Their Catalytic Activity for the Polymerization of Methyl Methacrylate and ε-Caprolactone

  摘要：

  The synthesis and catalytic activity of lanthanide monoamido complexes supported by a beta-diketiminate ligand are described. Donor solvents, such as DME, can cleave the chloro bridges of the dinuclear beta-diketiminate ytterbium dichloride {[(DIPPh)(2)nacnac]YbCl(mu-Cl)(3)Yb[(DIPPh)(2)nacnac](THF)} (1) [(DIPPh)(2)nacnac = N,N-diisopropylphenyl-2,4-pentanediimine anion] to produce the monomeric complex [(DIPPh)(2)nacnac]YbCl2(DME) (2) in high isolated yield. Complex 2 is a useful precursor for the synthesis of beta-diketiminate-ytterbium monoamido derivatives. Reaction of complex 2 with 1 equiv of LiNPr2i in THF at room temperature, after crystallization in THF/toluene mixed solvent, gave the anionic beta-diketiminate-ytterbium amido complex [(DIPPh)(2)nacnac]Yb(NPr2i)(mu-Cl)(2)Li(THF)(2) (3), while similar reaction of complex 2 with LiNPh2 produced the neutral complex [(DIPPh)(2)nacnac]Yb(NPh2)Cl(THF) (4). Recrystallization of complex 3 from toluene solution at elevated temperature led to the neutral beta-diketiminate-lanthanide amido complex [{(DIPPh)(2)nacnac}Yb(NPr2i)(mu-Cl)](2) (5). The reaction medium has a significant effect on the outcome of the reaction. Complex 2 reacted with 1 equiv of LiNPr2i and LiNC5H10 in toluene to produce directly the neutral beta-diketiminate-lanthanide amido complexes 5 and [{(DIPPh)(2)nacnac}Yb(NC5H10)(THF)(mu-Cl)](2) (6), respectively. These complexes were well characterized, and their crystal structures were determined, Complexes 4-6 exhibited good catalytic activity for the polymerization of methyl methacrylate and c-caprolactone.

  DOI：

  10.1021/ic051158t