Transfer Hydrogenation of Ketones and Imines with Methanol under Base-Free Conditions Catalyzed by an Anionic Metal–Ligand Bifunctional Iridium Catalyst
作者:Rongzhou Wang、Xingyou Han、Jing Xu、Peng Liu、Feng Li
DOI:10.1021/acs.joc.9b02957
日期:2020.2.21
An anionic iridium complex [Cp*Ir(2,2'-bpyO)(OH)][Na] was found to be a general and highly efficient catalyst for transfer hydrogenation of ketones and imines with methanol under base-free conditions. Readily reducible or labile substituents, such as nitro, cyano, and ester groups, were tolerated under present reaction conditions. Notably, this study exhibits the unique potential of anionic metal-ligand
发现阴离子铱络合物[Cp * Ir(2,2'-bpyO)(OH)] [Na]是一种通用且高效的催化剂,用于在无碱条件下用甲醇转移酮和亚胺的氢化反应。在目前的反应条件下,可以容易还原或不稳定的取代基,例如硝基,氰基和酯基。值得注意的是,这项研究展示了阴离子金属-配体双功能铱催化剂在甲醇作为氢源转移加氢方面的独特潜力。