biostudies-literatureUnknown6(6)Rodriguez-Florez LVMultilayer graphene (MLG), obtained by mild sonication of graphite in NMP, was functionalised <i>via</i> 1,3-dipolar cycloaddition with azomethine ylides generated by thermal 1,2-prototropy from various imino esters. The microwave-assisted functionalisation took place in five hours at 100 °C. The resulting MLG, containing substituted proline-based amine functional groups, was characterized using XPS and showed a nitrogen loading three times that obtained for the same transformation performed for five days using convection-assisted heating. The preparation of the imino ester containing a bipyridine unit at the arylidene position allowed for the preparation of the corresponding functionalised MLG, which incorporated the ruthenium atom to achieve a heterogeneous MLG-Ru complex. This supported complex was tested, as a proof of concept, as a photocatalyst of the aerobic oxidative hydroxylation of 4-methoxyphenylboronic acid.Nanoscale advances1648-1652https://www.ebi.ac.uk/biostudies/studies/S-EPMC10929589biostudies-literaturePreparation of a ruthenium complex covalently bonded to multilayer graphene and its evaluation as a photocatalyst.PMC10929589Navlani-Garcia MRodriguez-Florez LVSansano JMYus MCazorla-Amoros DNajera Cde Gracia Retamosa MfalsePreparation of a ruthenium complex covalently bonded to multilayer graphene and its evaluation as a photocatalyst.Multilayer graphene (MLG), obtained by mild sonication of graphite in NMP, was functionalised <i>via</i> 1,3-dipolar cycloaddition with azomethine ylides generated by thermal 1,2-prototropy from various imino esters. The microwave-assisted functionalisation took place in five hours at 100 °C. The resulting MLG, containing substituted proline-based amine functional groups, was characterized using XPS and showed a nitrogen loading three times that obtained for the same transformation performed for five days using convection-assisted heating. The preparation of the imino ester containing a bipyridine unit at the arylidene position allowed for the preparation of the corresponding functionalised MLG, which incorporated the ruthenium atom to achieve a heterogeneous MLG-Ru complex. This supported complex was tested, as a proof of concept, as a photocatalyst of the aerobic oxidative hydroxylation of 4-methoxyphenylboronic acid.2024-01-01T00:00:00Z2024 Mar2024-11-07T11:30:21.487Z2024-11-07T11:30:21.487ZS-EPMC109295893848204010.1039/d4na00075g