| 1589084-86-5

• CAS: 1589084-86-5
• 化学式: C₇₀H₁₀₂N₄O₄Si₄Sm₂
• 分子量: 1476.67
• InChiKey: OVJUUWVUEXZBSB-WTEBTHQCSA-J

反应信息

• 作为产物：
  描述：

  tris(bis(trimethylsilyl)amido)samarium(III) 、 2,4-Ditert-butyl-6-[[2-(2-hydroxy-6-methylphenyl)-3-methylphenyl]iminomethyl]phenol 以 甲苯 为溶剂， 以60%的产率得到
  参考文献：
  名称：

  Synthesis, structure, and catalytic activity of organolanthanide complexes with chiral biaryl Schiff-base ligands

  摘要：

  A new series of organolanthanide complexes have been prepared by silylamine elimination in good yields from Ln[N(SiMe3)(2)](3) and chiral biaryl Schiff-base NO2 ligands, 1H(2)-4H(2), which are derived from (S)-2-amino-2'-hydroxy-1,1'-binaphthyl or (S)-2-amino-2'-hydroxy-6,6'-dimethyl-1,1'-biphenyl, respectively. However, the formation of the organolanthanide complexes is strongly influenced by the solvent used in the synthesis. For example, treatment of ligand 1H(2) or 2H(2) with 1 equiv of Ln[N(SiMe3)213 in DME or THF gives the mononuclear complexes (1)Ln[N(SiMe3)21(DME) (Sm (5), Y (6), Yb (7)) and (2)Y [N(SiMe3)21(THF)2 (8), respectively. While reaction of 2H2, 3H(2) or 4H(2) with 1 equiv of Ln[N(SiMe3)213 in toluene gives the binuclear complexes {(2)Ln[N(SiMe3)2112 (Ln = Sm (9), Yb (10)), {(3)Yb[N(SiMe3)2112 (11) and {(4)Ln[N(SiMe3)2112 (Ln = Y (12), Yb (13)), respectively. Complexes 5-13 have been characterized by various spectroscopic techniques, elemental analyses, and X-ray diffraction analyses. The complexes 5-13 are active catalysts for the polymerization of rac-lactide, leading to the isotactic-rich polylactides. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2014.02.005