Ethylene tri-/tetramerization catalysts supported by diphosphinoindole ligands

被引：7
作者：
Ma, Xufeng [1 ,2 ]
Liu, Yao [1 ,2 ]
Wang, Zhichao [1 ,2 ]
Zhao, Xing [1 ,2 ]
Mi, Puke [3 ]
Zhang, Jun [1 ,2 ]
机构：
[1] East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China
[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, Shanghai 200237, Peoples R China
[3] East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2022年 / 958卷
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
Ethylene oligomerization; Diphosphinoindole ligands; Chromium complex; Ethylene trimerization; Ethylene tetramerization; Diphosphine; CHROMIUM CATALYSTS; TETRAMERIZATION CATALYSTS; TRIMERIZATION CATALYSTS; SELECTIVE TRIMERIZATION; OLIGOMERIZATION; COMPLEXES; MECHANISM; TRIMERIZATION/TETRAMERIZATION; DIPHOSPHINOAMINES; POLYMERIZATION;
D O I：
10.1016/j.jorganchem.2021.122175
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A new class of diphosphinoindole ligands have been developed. Upon activation with MMAO-3A, Cr catalysts supported by these bisphosphine ligands are active for ethylene tri-/tetramerization. The best result was achieved by using the bisphosphine ligand containing a phenyl group at C3 position of indole, giving a high activity of up to 364 kg/(g Cr/h) with a total selectivity of up to 72% toward 1-hexene (23.5%) and 1-octene (48.4%). A representative chromium tetracarbonyl complex was synthesized and structurally characterized by single-crystal X-ray diffraction. (c) 2021 Published by Elsevier B.V.
引用
收藏
页数：7
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