[1,3,6,8-tBu₄C₁₂H₄N]Yb[N(SiMe₃)₂](THF)₂ | 1535208-08-2

• 英文名称: [1,3,6,8-tBu₄C₁₂H₄N]Yb[N(SiMe₃)₂](THF)₂
• CAS: 1535208-08-2
• 化学式: C₄₂H₇₄N₂O₂Si₂Yb
• 分子量: 868.273
• InChiKey: SQNZOZCFHMTRFU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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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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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  1,3,6,8-四(叔丁基)咔唑 、 bis[N,N-bistrimethylsilylamido]bis(tetrahydrofuran)ytterbium(II) 以 甲苯 为溶剂， 反应 72.0h， 以85%的产率得到[1,3,6,8-tBu₄C₁₂H₄N]Yb[N(SiMe₃)₂](THF)₂
  参考文献：
  名称：

  Divalent Heteroleptic Ytterbium Complexes – Effective Catalysts for Intermolecular Styrene Hydrophosphination and Hydroamination

  摘要：

  New heteroleptic Yb(II)-amide species supported by amidinate and 1,3,6,8-tetra-tert-butylcarbazol-9-yl ligands [2-MeOC6H4NC(tBu)N-(C6H3-iPr(2)-2,6)]YbN(SiMe3)(2)(THF) (6) and [1,3,6,8-tBu(4)C(12)H(4)N]Yb[N(SiMe3)(2)](THF)(n) (n = 1 (7), 2 (8)) were synthesized using the amine elimination approach. Complex 6 features an unusual kappa(1)-N,kappa(2)-O,eta(6)-arene coordination mode of the amidinate ligand onto Yb(II). Complexes 7 and 8 represent the first examples of lanthanide complexes with pi-coordination of carbazol-9-yl ligands. Complexes 6 and 7, as well as the amidinate-Yb(II)-amide [tBuC(NC6H3-iPr(2)-2,6)(2)]YbN(SiMe3)(2)(THF) (5), are efficient pre-catalysts for the intermolecular hydrophosphination and hydroamination of styrene with diphenylphosphine, phenylphosphine, and pyrrolidine to give exclusively the anti-Markovnikov monoaddition product. For both types of reaction, the best performances were observed with carbazol-9-yl complex 7 (TONs up to 92 and 48 mol/mol at 60 degrees C, respectively).

  DOI：

  10.1021/ic4027859