[(OC(CF3)2CH2C(Me)=NC2H4N=C(Me)CH2C(CF3)2O)La(OC(CF3)2CH2C(Me)=NC2H4N=C(Me)CH2C(CF3)2OH)] | 1072913-28-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: [(OC(CF3)2CH2C(Me)=NC2H4N=C(Me)CH2C(CF3)2O)La(OC(CF3)2CH2C(Me)=NC2H4N=C(Me)CH2C(CF3)2OH)]
• CAS: 1072913-28-0
• 化学式: C₂₈H₂₉F₂₄LaN₄O₄
• 分子量: 1080.43
• InChiKey: WIDDTANMRSQRMW-QZPPGBCMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  La[N(SiHMe₂)₂]₃(THF)₂ 、 (CF3)2C(OH)CH2C(Me)=N-C2H4-N=C(Me)CH2C(OH)(CF3)2 以 甲苯 为溶剂， 以70%的产率得到[(OC(CF3)2CH2C(Me)=NC2H4N=C(Me)CH2C(CF3)2O)La(OC(CF3)2CH2C(Me)=NC2H4N=C(Me)CH2C(CF3)2OH)]
  参考文献：
  名称：

  Group 3 Metal Complexes of Salen-like Fluorous Dialkoxy−Diimino Ligands: Synthesis, Structure, and Application in Ring-Opening Polymerization of rac-Lactide and rac-β-Butyrolactone

  摘要：

  The coordination chemistry of the dianionic fluorous dialkoxy-diimino ligand {OC(CF3)(2)-CH2C(Me)=NCH2CH2N=C(Me)CH2C(CF3)(2)O}(2-) ({(ONNO)-N-Et}(2-)) onto Y(III) and La(III) centers has been studied. The diimino-diol {(ONNO)-N-Et}H-2 reacts with 1 equiv of Y(N(SiHMe2)(2))(3)center dot 2THF to afford {(ONNO)-N-Et}Y(N(SiHMe2)(2))(THF) (1). Complex 1 slowly decomposes in solution, forming as yet undefined products, but could be stabilized by further reaction with 1 equiv of (R)-(+)-tert-butyl lactate, to give selectively [{(ONNO)-N-Et}Y((R)-tBu-lactate)](2) (2) in 78% yield. A single-crystal diffraction study revealed that 2 is dinuclear in the solid state, with bridging mu,kappa O-2,O,O-lactate units and tetracoordinated {(ONNO)-N-Et} units. The same geometry is retained in THF-d(8) solution, as indicated by H-1, C-13, and F-19 NMR spectroscopy. Reaction of {(ONNO)-N-Et}H-2 with 1 equiv of La(N(SiHMe2)(2))(3)center dot 2THF or La(N(SiMe3)(2))(3) systematically yielded {(ONNO)-N-Et}La((ONNOH)-N-Et} (3), which was characterized by single-crystal X-ray diffraction and NMR studies. Complex 2 is an effective initiator for the controlled-"living" ring-opening polymerization of rac-lactide and rac-beta-butyrolactone, giving atactic polymers with high molecular weights (M-n up to 55 000 g mol(-1)) that match well the calculated values and relatively narrow polydispersities (M-w/M-n = 1.06-1.60). The immortal ROP of rac-lactide appears feasible by combining complex 2 with 5 equiv of 2-propanol.

  DOI：

  10.1021/om800611c