(η5:η1:η5:η1-Et8-calix[4]pyrrolyl)(Gd(SiMe3)2)2 | 1360146-18-4

• 英文名称: (η5:η1:η5:η1-Et8-calix[4]pyrrolyl)(Gd(SiMe3)2)2
• CAS: 1360146-18-4
• 化学式: C₄₈H₈₄Gd₂N₆Si₄
• 分子量: 1172.08
• InChiKey: WTXQTQVZVDWKLJ-UHFFFAOYSA-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：

  [(Me₃Si)₂N]₃Gd(µ-Cl)Li(THF)₃ 、 meso-octaethylporphyrinogen 以 甲苯 为溶剂， 以53%的产率得到(η5:η1:η5:η1-Et8-calix[4]pyrrolyl)(Gd(SiMe3)2)2
  参考文献：
  名称：

  Synthesis and Characterization of Organolanthanide Complexes with a Calix[4]-pyrrolyl Ligand and Their Catalytic Activities toward Hydrophosphonylation of Aldehydes and Unactivated Ketones

  摘要：

  The alkali metal salt free dinuclear trivalent lanthanide amido complexes (eta(5):eta(1):eta(5):eta(1)-Et-8-calix[4]-pyrrolyl){LnN-(SiMe3)(2)}(2) (Ln = Nd (2), Sm (3), Gd (4)) were prepared through the silylamine elimination reactions of calix[4]-pyrrole [Et2C(C4H2NH)](4) (1) with 2 equiv of [(Me3Si)(2)N](3)Ln(mu-Cl)Li(THF)(3) (Ln = Nd, Sm, Gd) in toluene at 110 degrees C. The complexes were fully characterized by elemental, spectroscopic, and single-crystal X-ray analyses. Studies on the catalytic activity of the new lanthanide amido complexes revealed that these complexes can be used as efficient catalysts for hydrophosphonylation of aldehydes and unactivated ketones, affording the products in high yields by employing a low catalyst loading (0.1 mol %) at room temperature in a short time (20 min). Noteworthy is that it is the first application of calix[4]-pyrrolyl-supported lanthanide amides as catalysts to catalyze the hydrophosphonylation of aldehydes and unactivated ketones under mild conditions.

  DOI：

  10.1021/om2008925