Propylene Dimerization by (η~5-C_9H_7)_2 Nickel(II) Catalytic System
Propylene Dimerization by (η~5-C_9H_7)_2 Nickel(II) Catalytic System作者机构:National Engineering Research Center for Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Chem Phy Chemical Company Ltd.Dalian Liaoning 116011 China National Engineering Research Center for Catalysis Dalian Institute of Chemical PhysicsChinese Academy of Sciences
出 版 物:《Chinese Journal of Chemistry》 (中国化学(英文版))
年 卷 期:2003年第21卷第4期
页 面:372-376页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学]
主 题:Ni( η 5 Ind) 2 complex propylene dimerization Al co catalyst phosphine ligand
摘 要:The catalytic performance of Ni( η 5 Ind) 2 complex in the dimerization of propylene was studied in combination with an organoaluminum co catalyst, eventually in the presence of a phosphine ligand. The effects of the type of aluminum co catalyst and its relative amount, the nature of phosphine ligand and P/Ni ratio as well as the reaction temperature were examined. The results indicated that the nickel precatalyst exhibited high productivity for the propylene dimerization together with organoaluminum. It was likely to strongly modify the reactivity in the catalytic system when using phosphine ligand as additives, especially at the reaction temperature below 0 ℃. The catalytic system based on Ni( η 5 Ind) 2 complex displayed an extremely high productivity (TOF up to 169000 h -1 ) and a good regioselectivity to 2,3 dimethylbutenes (2,3 DMB) in dimers (66 4%) under proper reaction parameters.