[(2,6-(PhN=CH)2C6H3)AlEt2] | 1253044-77-7

• 英文名称: [(2,6-(PhN=CH)2C6H3)AlEt2]
• CAS: 1253044-77-7
• 化学式: C₂₄H₂₅AlN₂
• 分子量: 368.457
• InChiKey: OPWDPVLXZLRZGV-HESHWDSWSA-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：

  1,3-bis[(N-phenyl)imino]-2-bromobenzene 、 氯化二乙基铝 在 n-BuLi 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 以46%的产率得到[(2,6-(PhN=CH)2C6H3)AlEt2]
  参考文献：
  名称：

  Bis(imino)aryl NCN Pincer Aluminum and Zinc Complexes: Synthesis, Characterization, and Catalysis on l-Lactide Polymerization

  摘要：

  Reactions of 2,6-(ArN=CH)(2)C6H3Li with AlEt2Cl afford a number of NCN pincer aluminum complexes (2,6-(ArN=CH)(2)C6H3)AlEt2 (Ar = Ph (1), 2,6-Me2C6H3 (2), 2,6-Et2C6H3 (3), 2,6-(Pr2C6H3)-Pr-i (4)). Similar reactions of 2,6-(ArN=CH)(2)C6H3Li with ZnEtCl produce bisligated zinc complexes (2,6-(ArN=CH)(2)C6H3)(2)Zn (Ar = ph (5), 2,6-Me2C6H3 (6), 2,6-Et2C6H3 (7)) and monoligated NCN pincer zinc complex (2,6-(ArN=CH)(2)C6H3)ZnEt (Ar = 2,6-(Pr2C6H3)-Pr-i (8)). All complexes were characterized by H-1 and C-13 NMR spectroscopy, and the molecular structures of complexes 3, 4, 6, 7, and 8 were determined by X-ray crystallography. The X-ray diffraction analysis reveals that both complexes 3 and 4 adopt a distorted trigonal-bipyramidal geometry around the aluminum central metal with three carbon atoms in the equator and the two imine nitrogen atoms in the apical positions. Complexes 6 and 7 adopt a distorted tetrahedral geometry around their zinc metal centers, while complex 8 adopts a square-planar geometry around its metal center. All these Al and Zn complexes are efficient initiators for L-lactide ring-opening polymerization in the presence of benzyl alcohol, and the polymerization reaction takes place in an immortal manner. The productivity of the Zn complexes is generally higher than that of the Al complexes under similar conditions.

  DOI：

  10.1021/om100344p