Chemistry | 2021
Merging N-hydroxyphthalimide into Metal-Organic Frameworks for Highly Efficient and Environmentally Benign Aerobic Oxidation.
Abstract
Two highly efficient metal-organic framework catalysts TJU-68-NHPI and TJU-68-NDHPI have been successfully synthesized through solvothermal reactions of which the frameworks are merged with\xa0N-hydroxyphthalimide (NHPI) units for the first time, resulting in the decoration of pore surfaces with highly active nitroxyl catalytic sites. When\xa0t-butyl nitrite (TBN) is used as co-catalyst, the as synthesized MOFs are demonstrated to be highly efficient and recyclable catalysts for a novel three-phase heterogeneous oxidation of activated C-H bond of primary, secondary alcohols and benzyl compounds under mild conditions. Based on the high efficiency and selectivity, an environmental benign system with good sustainability, mild condition, simple work-up procedure has been established for practical oxidation of a wide range of substrates.