| Boron- and silicon-bridged bis（diphenylphosphino）-type ligands for chromium-catalyzed ethylene oligomerization |
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| 作者姓名： | Yueming Sun Yanhui Chen Guoliang Mao Yingnan Ning Tao Jiang |
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| 作者单位： | College of Material Science and Chemical Engineering,Tianjin University of Science & Technology;College of Chemistry and Chemical Engineering,Northeast Petroleum University |
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| 基金项目： | supported by the National Natural Science Foundation of China (U1162114,U1362110);the Program for New Century Excellent Talents in University (NCET-070142) |
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| 摘 要： | PNP-type ligands showed very good property in the catalytic systems of PNP/Cr(Ⅲ)/methylaluminoxane(MAO)for ethylene selective tetramerization toward1-octene.In this research,two PNP analogues bis(diphenylphosphino)phenylborane and bis(diphenylphosphino)dimethylsilane have been synthesized and characterized.In combination with CrCl3(THF)3as active center and MAO as cocatalyst,these ligands produced a new catalytic systems for ethylene oligomerization to linear α-olefins with catalytic activities of up to 3.07 9 106g mol-1(cat)h-1.Herein,we report the effects of the reaction temperature,ethylene pressure,and the molar ratio of Al/Cr on the catalyst activities and product selectivities.
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| 关 键 词： | Bis(diphenylphosphino)phenylborane Bis(diphenylphosphino)dimethylsilane Chromium catalyst Ethylene oligomerization Linear α-olefin |
Boron- and silicon-bridged bis(diphenylphosphino)-type ligands for chromium-catalyzed ethylene oligomerization |
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| Yueming Sun,Yanhui Chen,Guoliang Mao,Yingnan Ning,Tao Jiang.Boron- and silicon-bridged bis(diphenylphosphino)-type ligands for chromium-catalyzed ethylene oligomerization[J].Chinese Science Bulletin,2014,59(21):2613-2617. |
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| Authors: | Yueming Sun Yanhui Chen Guoliang Mao Yingnan Ning Tao Jiang |
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| Institution: | 1. College of Material Science and Chemical Engineering, Tianjin University of Science & Technology, Tianjin, 300457, China
2. College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing, 163318, China
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| Abstract: | Bis（diphenylphosphino）phenylborane Bis（diphenylphosphino）dimethylsilane Chromium catalyst - Ethylene oligomerization Linear α-olefin |
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| Keywords: | Bis（diphenylphosphino）phenylborane Bis（diphenylphosphino）dimethylsilane Chromium catalyst - Ethylene oligomerization Linear α-olefin |
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