Olefin metathesis catalysts bearing hemilabile NHC ligands: Effect of remote torsional strain on activity

被引：2

作者：

Wang, Haoyu ^{[1
]}

Yu, Haitao ^{[1
]}

Bai, Dong ^{[1
]}

Yao, Dan ^{[1
]}

Han, Yongjun ^{[1
]}

Shi, Yichao ^{[2
]}

Wang, Zhiqun ^{[1
,3
]}

机构：

[1] Aerosp Ctr Hosp, Dept Radiol, Beijing, Peoples R China

[2] Aerosp Ctr Hosp, Dept Gastroenterol, Beijing, Peoples R China

[3] Peking Univ, Aerosp Ctr Hosp, Dept Radiol, Aerosp Sch Clin Med, 15 Yuquan Rd, Beijing, Peoples R China

来源：

JOURNAL OF CATALYSIS | 2023年 / 421卷

关键词：

Olefin metathesis; Ruthenium; N -heterocyclic carbene; Hemilabile; Catalysis; Decomposition; N-HETEROCYCLIC CARBENE; DECOMPOSITION; INITIATORS; MECHANISM; COMPLEXES; EFFICIENT;

D O I：

10.1016/j.jcat.2023.03.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A ruthenium olefin metathesis catalyst (C1-H) bearing a novel NHC ligand tethered by a labile ethoxy-pyridyl arm was synthesized and characterized. The initiation rate, kinetics, metathesis activity, and decomposition behavior were compared with its methylated derivative (C1-Me), showing that these two catalysts vary profoundly. We demonstrate the considerable influence of remote torsional strain on the catalytic activity and decomposition behavior of this ligand class - a feature that can be exploited for related systems.Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons. org/licenses/by/4.0/).

引用

页码：376 / 383

页数：8

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