Pankov Roman O, Tarabrin Ignatii R, Son Alexandra G, Minyaev Mikhail E, Prima Darya O, Ananikov Valentine P
Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospekt 47, Moscow, 119991, Russia.
Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1-3, Moscow 119991, Russia.
Dalton Trans. 2024 Jul 30;53(30):12503-12518. doi: 10.1039/d4dt01304b.
The electron-donating and electron-accepting properties of N-heterocyclic carbene (NHC) ligands play a pivotal role in governing their interactions with transition metals, thereby influencing the selectivity and reactivity in catalytic processes. Herein, we report the synthesis of Pd/NHC and Ni/NHC complexes, wherein the electronic parameters of the NHC ligands were systematically varied. By performing a series of controlled structure modifications, we elucidated the influence of the σ-donor and π-acceptor properties of NHC ligands on interactions with the transition metals Pd and Ni and, consequently, the catalytic behavior of Pd and Ni complexes. The present study deepens our understanding of NHC-metal interactions and provides novel information for the rational design of efficient catalysts for organic synthesis.
N-杂环卡宾（NHC）配体的给电子和吸电子性质在控制其与过渡金属的相互作用中起着关键作用，从而影响催化过程中的选择性和反应性。在此，我们报道了Pd/NHC和Ni/NHC配合物的合成，其中NHC配体的电子参数被系统地改变。通过进行一系列可控的结构修饰，我们阐明了NHC配体的σ供体和π受体性质对与过渡金属Pd和Ni相互作用的影响，进而阐明了Pd和Ni配合物的催化行为。本研究加深了我们对NHC-金属相互作用的理解，并为合理设计高效有机合成催化剂提供了新的信息。
