Chemoselective and Tandem Reduction of Arenes Using a Metal–Organic Framework-Supported Single-Site Cobalt Catalyst
作者:Neha Antil、Ajay Kumar、Naved Akhtar、Wahida Begum、Manav Chauhan、Rajashree Newar、Manhar Singh Rawat、Kuntal Manna
DOI:10.1021/acs.inorgchem.1c03098
日期:2022.1.17
five times without decreased activity. The same MOF-Co catalyst was also efficient for tandem hydrogenation–hydrodeoxygenation of aryl carbonyl compounds, including biomass-derived platform molecules such as furfural and hydroxymethylfurfural to cycloalkanes. In the case of hydrogenation of cumene, our spectroscopic, kinetic, and density functional theory (DFT) studies suggest the insertion of a trisubstituted
使用丰富的金属开发多相、化学选择性和串联催化系统对于精细和大宗化学品的可持续合成至关重要。我们报告了一种基于多孔铝金属有机骨架 (DUT-5 MOF) 的稳健且可回收的单中心钴氢化物催化剂,用于芳烃的化学选择性加氢。DUT-5 节点负载的氢化钴 (II) (DUT-5-CoH) 是一种多功能固体催化剂,用于化学选择性氢化一系列非极性和极性芳烃,包括杂芳烃,如吡啶、喹啉、异喹啉、吲哚和呋喃以优异的收率提供环烷烃和饱和杂环。DUT-5-CoH 表现出优异的官能团耐受性,可重复使用至少五次而不会降低活性。相同的 MOF-Co 催化剂也可有效用于芳基羰基化合物的串联加氢-加氢脱氧,包括生物质衍生的平台分子(如糠醛和羟甲基糠醛)生成环烷烃。在异丙苯加氢的情况下,我们的光谱、动力学和密度泛函理论 (DFT) 研究表明,在转换限制步骤中将三取代烯烃中间体插入到 Co-H 键中。我们的工作突出了 MOF