Ritleng Vincent, Michon Christophe
Ecole européenne de Chimie, Polymères et Matériaux, Université de Strasbourg, CNRS, LIMA, UMR 7042, 25 rue Becquerel, 67087 Strasbourg, France.
Molecules. 2022 Jul 23;27(15):4703. doi: 10.3390/molecules27154703.
Ruthenium complexes are by far the most studied compounds that catalyze hydrogen transfer reactions. In this review, we describe the use in this field of ruthenium complexes bearing bidentate donor-functionalized -heterocyclic carbene ligands. The review specifically covers the application in transfer hydrogenations of (k-,)-ruthenacyclic compounds where the Y donor atom is a N, P, O, or S atom, and where the -heterocyclic carbene ligand is a classical imidazol-2-ylidene, a benzimidazol-2-ylidene, a mesoionic 1,2,3-triazolylidene, or an imidazol-4-ylidene ligand. Tridentate donor-functionalized -heterocyclic carbene complexes thus fall outside the scope of the review. Applications in (asymmetric) transfer hydrogenation of ketones, aldehydes, imines, alkenes, and nitrobenzene are discussed.
钌配合物是迄今为止催化氢转移反应研究最多的化合物。在本综述中，我们描述了带有双齿供体官能化的 - 杂环卡宾配体的钌配合物在该领域的应用。本综述特别涵盖了（κ，λ）- 钌环化合物在转移氢化反应中的应用，其中 Y 供体原子为 N、P、O 或 S 原子，且 - 杂环卡宾配体为经典的咪唑 - 2 - 亚基、苯并咪唑 - 2 - 亚基、中离子型 1,2,3 - 三唑亚基或咪唑 - 4 - 亚基配体。因此，三齿供体官能化的 - 杂环卡宾配合物不在本综述范围内。讨论了其在酮、醛、亚胺、烯烃和硝基苯的（不对称）转移氢化反应中的应用。
