Synchronous Proton‐Hydride Transfer by a Pyrazole‐Functionalized Protic Mn(I) Complex in Catalytic Alcohol Dehydrogenative Coupling
作者:Subhabrata De、Prabodh Ranjan、Vishal Chaurasia、Sourav Pal、Saikat Pal、Pragati Pandey、Jitendra K. Bera
DOI:10.1002/chem.202301758
日期:2023.10.18
A protic Mn(I) complex featuring pyrazole functionality was evaluated for dehydrogenative coupling reactions to access benzimidazole and quinoline derivatives. Kinetic experiments and DFT calculations reveal that the initial alcohol dehydrogenation step proceeds through a concerted proton and hydride transfers to pyrazolato N and Mn, respectively, on the metal-ligand construct.
对具有吡唑官能团的质子 Mn(I)配合物进行脱氢偶联反应评估,以得到苯并咪唑和喹啉衍生物。动力学实验和 DFT 计算表明,最初的醇脱氢步骤是通过协调的质子和氢化物分别转移到金属配体结构上的吡唑根 N 和 Mn 来进行的。