The key role of R-NHC coupling (R = C, H, heteroatom) and M-NHC bond cleavage in the evolution of M/NHC complexes and formation of catalytically active species

被引：105

作者：

Chernyshev, Victor M. ^{[1
]}

Denisova, Ekaterina A. ^{[2
]}

Eremin, Dmitry B. ^{[2
,3
]}

Ananikov, Valentine P. ^{[1
,2
]}

机构：

[1] Platov South Russian State Polytech Univ NPI, Prosveschenya 132, Novocherkassk 346428, Russia

[2] Russian Acad Sci, ND Zelinsky Inst Organ Chem, Leninsky Prospect 47, Moscow 119991, Russia

[3] Univ Southern Calif, Bridge USC, 1002 Childs Way, Los Angeles, CA 90089 USA

来源：

CHEMICAL SCIENCE | 2020年 / 11卷 / 27期

基金：

俄罗斯科学基金会;

关键词：

N-HETEROCYCLIC CARBENE; BUCHWALD-HARTWIG AMINATION; TO-ABNORMAL REARRANGEMENT; PD-PEPPSI COMPLEXES; OXIDATIVE ADDITION; SUZUKI-MIYAURA; REDUCTIVE ELIMINATION; MIZOROKI-HECK; METAL-COMPLEXES; PALLADIUM(II) COMPLEXES;

D O I：

10.1039/d0sc02629h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Complexes of metals with N-heterocyclic carbene ligands (M/NHC) are typically considered the systems of choice in homogeneous catalysis due to their stable metal-ligand framework. However, it becomes obvious that even metal species with a strong M-NHC bond can undergo evolution in catalytic systems, and processes of M-NHC bond cleavage are common for different metals and NHC ligands. This review is focused on the main types of the M-NHC bond cleavage reactions and their impact on activity and stability of M/NHC catalytic systems. For the first time, we consider these processes in terms of NHC-connected and NHC-disconnected active species derived from M/NHC precatalysts and classify them as fundamentally different types of catalysts. Problems of rational catalyst design and sustainability issues are discussed in the context of the two different types of M/NHC catalysis mechanisms.

引用

页码：6957 / 6977

页数：21

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