(ethyl 6-[1-((2,6-dimethylphenyl)imino)ethyl]pyridine-2-carboxylate)CoCl2 | 919509-53-8

• 英文名称: (ethyl 6-[1-((2,6-dimethylphenyl)imino)ethyl]pyridine-2-carboxylate)CoCl2
• 英文别名: (2-carbethoxy-6-[1-[(2,6-dimethylphenyl)imino]-ethyl]pyridine)CoCl2
• CAS: 919509-53-8；787616-27-7
• 化学式: C₁₈H₂₀Cl₂CoN₂O₂
• 分子量: 426.268
• InChiKey: FCFBGKNVWFAUFQ-HEXQVDJKSA-L

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：

  ethyl 6-[1-((2,6-dimethylphenyl)imino)ethyl]pyridine-2-carboxylate 、 cobalt(II) chloride 以 乙醇 为溶剂， 以68%的产率得到(ethyl 6-[1-((2,6-dimethylphenyl)imino)ethyl]pyridine-2-carboxylate)CoCl2
  参考文献：
  名称：

  Synthesis, Characterization, and Ethylene Oligomerization and Polymerization of Ferrous and Cobaltous 2-(Ethylcarboxylato)-6-iminopyridyl Complexes

  摘要：

  A series of ferrous complexes (L)FeCl2 (3a-f) and cobaltous complexes (L)CoCl2 (4a-f) were prepared by the reaction of 2-(carboxylato)-6-iminopyridines 2a-f (2-COOEt-6-(2,6-R2C6H3N=CCH3)C5H3N: 2a, R = CH3; 2b, R = Et; 2c, R = i-Pr; 2d, R = F; 2e, R = Cl; 2f, R = Br) with FeCl2 or CoCl2. The obtained complexes were characterized by elemental analysis and IR spectroscopy, and the solid-state structures of 2b,c, 3b,c,e,f, and 4c,f were determined by X-ray diffraction analysis. X-ray crystallographic analyses of complexes 3c,e,f and 4c,f reveal a four-coordinated distorted-tetrahedral geometry, except for complex 3b, in which the tridentate ligand is coordinated through a weak bonding between iron and the carbonyl oxygen of the ester group. The complexes were studied for ethylene oligomerization and polymerization in the presence of methylaluminoxane (MAO) under various reaction conditions. It was found that the ferrous complexes exhibit higher activities for ethylene polymerization than for oligomerization, while the cobaltous complexes show higher activities for ethylene oligomerization. In addition, the ferrous catalytic systems predominantly produce linear oligomers and polyethylene with unsaturated end groups.

  DOI：

  10.1021/om0496636

文献信息

• Preparation, structure and ethylene polymerization/oligomerization behavior of 2-carbethoxy-6-iminopyridine-based transition metal complexes
  作者：Bi-Yun Su、Jian-She Zhao

  DOI：10.1016/j.poly.2006.06.015

  日期：2006.12

  Abstract The synthesis, characterization and ethylene polymerization/oligomerization of a series of transition metal complexes with the formula 2-carbethoxy-6-[1-[(2,6-dimethylphenyl)imino]-ethyl]pyridine}nMCl2 [M = Mn(II) (8), Fe(II) (9), Co(II) (10), Cu(II) (11), Zn(II) (12), n = 1; Ni(II) (13), n = 2]; 2-carbethoxy-6-[1-[(2,4,6- trimethylphenyl)imino]ethyl]pyridine}MCl2 [M = Fe(II) (14), Co(II) (15)

  摘要一系列2-乙氧基-6- [1-[（[2,6-二甲基苯基）亚氨基]-乙基]吡啶} nMCl2 [M = Mn （II）（8），Fe（II）（9），Co（II）（10），Cu（II）（11），Zn（II）（12），n = 1; Ni（II）（13），n = 2]；2-乙氧基-6- [1-[（2,4,6-三甲基苯基）亚氨基]乙基]吡啶} MCl2 [M = Fe（II）（14），Co（II）（15），Ni（II） （16）]；2-乙氧基-6- [1-[（[2,6-二乙基苯基）-亚氨基]乙基]吡啶} MCl2 [M = Fe（II）（17），Co（II）（18），Ni（II）（ 19）]的报道。系统研究集中在这些络合物对乙烯聚合/低聚的催化活性与中心金属的电子性质，配体结构以及反应条件之间的关系上。Fe（II），Co（II），Ni（II）催化剂体系具有中等活性，范围从0.35×104到5