bis(2-(4,5-dihydro-2-oxazolyl)phenolato)nickel | 37638-79-2

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: bis(2-(4,5-dihydro-2-oxazolyl)phenolato)nickel
• 英文别名: [Ni(2-(4,5-dihydro-oxazol-2-yl)phenolate)2]
• CAS: 37638-79-2；808162-00-7
• 化学式: C₁₈H₁₆N₂NiO₄
• 分子量: 383.026
• InChiKey: MGDCKVXVYLHIFF-UHFFFAOYSA-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：

  2-(4,5-二氢恶唑-2-基)苯酚 、 [bis(triphenylphosphine)](o-tolyl)chloronickel 在 三乙胺 作用下， 以 甲苯 为溶剂， 生成 bis(2-(4,5-dihydro-2-oxazolyl)phenolato)nickel 、 [2-(4,5-dihydro-2-oxazolyl)phenolato]Ni(2-CH3-C6H3)(PPh3)
  参考文献：
  名称：

  Novel neutral arylnickel(II) phosphine catalysts containing 2-oxazolinylphenolato N–O chelate ligands for ethylene oligomerization and propylene dimerization

  摘要：

  A series of new neutral arylnickel(II) phosphine complexes 1 bearing 2-oxazolinylphenolato ligands [2-(4-R(1)-5-R(2)-C(3)H(2)NO)-C(6)H(4)O]Ni(2-R (4)-4-R(3)-C(6)H(3))(PPh(3)) were synthesized by reactions of sodium salts of 2-(4,5-dihydro-2-oxazolyl)phenol derivatives with trans-Ni(Ar)(Cl)(PPh(3))(2) or by direct reactions of the ligands with trans-Ni(Ar)(Cl)(PPh(3))(2) in the presence of NEt(3). These neutral Ni(II) complexes 1 exhibited high activities and selectivities in ethylene oligomerization and propylene dimerization. The catalytic activities and the product distributions were dependent on the selection of various organoaluminum cocatalysts and phosphine scavenger (Ni(COD)(2)). The effects of various reaction conditions on ethylene oligomerization were also examined. The highest activity of 5.51 x 10(5) g oligomers/(mol Ni (.) h) and 83% selectivity of C(6) internal olefins were obtained in 1a/MAO catalytic system in ethylene oligomerization. The oligomers consisted mainly of lower carbon olefins in the range of C(4)-C(8). Complexes 1 showed the moderate tolerance of polar additives in ethylene oligomerization. The highest activity of 1a/MAO in propylene dimerization reached to 1.32 x 10(5) g oligomers/(mol Ni(.)h). (C) 2004 Published by Elsevier B.V.

  DOI：

  10.1016/j.jorganchem.2004.05.021

文献信息

• Synthesis, crystal structure, and olefin oligomerization activity of neutral arylnickel(II) phosphine catalyst with 2-oxazolinylphenolato N–O chelate ligand
  作者：Yanlong Qian、Wei Zhao、Jiling Huang

  DOI：10.1016/j.inoche.2003.12.003

  日期：2004.3

  Abstract A novel neutral arylnickel(II) phosphine complex 1 bearing 2-oxazolinylphenolato ligand is synthesized by the reaction of trans -Ni(Ph)(Cl)(PPh 3 ) 2 with 2-(4,5-dihydro-oxazol-2-yl)phenol in the presence of NEt 3 , and the molecular structure is determined by X-ray single crystal diffraction. Complex 1 exhibits high activity and selectivity in catalyzing olefin oligomerization when various

  摘要 通过反式-Ni(Ph)(Cl)(PPh 3 ) 2 与2-(4,5-dihydro-oxazol-2-基)苯酚在NEt 3 存在下，分子结构由X射线单晶衍射确定。当使用各种有机铝助催化剂或Ni(COD) 2 (TOF值高达507 kg低聚物/(mol Ni·h))时，配合物1在催化烯烃低聚反应中表现出高活性和选择性。