崔凤娟,王环宇,邓庆芳,江艳,曹艳珍,赵桦萍.2-吡唑啉-9-芳基邻菲咯啉镍配合物催化芳基卤化物和格氏试剂偶联反应的研究[J].分子催化,2018,32(5):397-404 |
2-吡唑啉-9-芳基邻菲咯啉镍配合物催化芳基卤化物和格氏试剂偶联反应的研究 |
Cross-Coupling Reaction of Aryl Halides with Grignard Reagents Catalyzed by Nickel Complexes Supported 2-pyrazolinyl-9-aryl-1,10-phenanthrolines |
投稿时间:2018-07-03 修订日期:2018-08-10 |
DOI: |
中文关键词: 2-吡唑啉-9-芳基邻菲咯啉 镍配合物 C-C偶联反应 |
英文关键词:2-pyrazolyl-9-aryl-1,10-phenanthrolines nickel complexes C—C cross coupling reactions |
基金项目:This research was supported by the Natural Science Foundation of Heilongjiang Province of China (No. B2015015), the Post-doctoral Scientific Research Developmental Fund of Heilongjiang Province of China (No. LBH-Q14158) and the Program for Yong Teachers Scientific Research in Qiqihar University (No. 2014k-Z07). |
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中文摘要: |
4个基于2-吡唑啉-9-芳基邻菲咯啉(L1-L4)镍配合物[NiCl2L](1-4)被开发用于芳基卤化物和格氏试剂偶联反应的研究,表现出良好的催化活性.对配合物(4)的结构进行了x-单晶衍射表征,分析发现中心金属镍为五配位的四方锥构型利于C-C偶联反应.讨论了配体空间位阻及反应条件对该偶联反应活性的影响,发现邻菲咯啉的9位位阻对催化活性影响更明显. |
英文摘要: |
Four nickel complexes[NiCl2L](1-4) supported by a tridentate pyrazolyl-based phenanthroline ligand (L1-L4) have been developed for C-C coupling reactions. The nickel complexes exhibited moderate catalytic activities for C-C coupling reactions of various aryl halides with Grignard reagent. Single-crystal X-ray diffraction analysis of the complex[NiCl2L4](4) reveal a distorted trigonal bipyramidal geometry at the Ni(Ⅱ) center, which creates a reaction channel to facilitate C-C coupling reactions. |
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