Ethylene oligomerization with 2-hydroxymethyl-5,6,7-trihydroquinolinyl-8-ylideneamine-Ni(II) chlorides
作者:Lei Xu、Jiaxin Li、Wenhua Lin、Yanping Ma、Xinquan Hu、Zygmunt Flisak、Wen-Hua Sun
DOI:10.1016/j.jorganchem.2021.121720
日期:2021.4
A series of Ni complexes of the general formula [2-(MeOH)-8-N(Ar)}C9H8N]NiCl2, where Ar = 2,6-Me2C6H3 in Ni1; 2,6-Et2C6H3 in Ni2; 2,6-i-Pr2C6H3 in Ni3; 2,4,6-Me3C6H2 in Ni4; 2,6-Et2-4-MeC6H2 in Ni5 and 2,4,6-t-Bu3C6H2 in Ni6 has been synthesized and characterized by elemental analysis and IR spectroscopy. On activation with MMAO or Et2AlCl, these complexes showed high activity in ethylene oligomerization
一系列通式镍配合物的[2-(MeOH中)-8- N(Ar)的}℃ 9 ħ 8 N]的NiCl 2,其中Ar = 2,6--ME 2 ç 6 ħ 3在NI1 ; 2,6-ET 2 ç 6 ħ 3中NI2 ; 2,6-I-PR 2 ç 6 ħ 3中的Ni3 ; 2,4,6--ME 3 c ^ 6 ħ 2在NI4 ; 2,6-ET 2 -4-MEC 6 ħ 2在NI5和2,4,6-叔卜3 Ç6 ħ 2在NI6已经合成和表征通过元素分析和IR光谱。在用MMAO或Et 2 AlCl活化后,这些络合物在乙烯的低聚反应中表现出高活性,在30°C时Al / Ni比为5500和9.11×10时达到2.23×10 6 g · mol –1(Ni)h –1。5 g · mol –1(Ni)h –1的Al / Ni分别为800。此外,α-C的内容4表示高选择性在镍/超过99%的Et 2AlCl系统。与我们小组先