ANCHORAGE OF PD INTO MODIFIED ISORETICULAR METAL–ORGANIC FRAMEWORK-3 AS A HETEROGENEOUS CATALYST FOR MIZOROKI–HECK CROSS-COUPLING REACTIONS
Journal: Acta Chemica Malaysia (ACMY)
Author: Jamal Kouhdareh, Hassan Keypour, Sedigheh Alavinia
This is an open access journal distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
In recent days, nanohybrid metal organic frameworks (MOF) have been considered as next generation catalysts due to their unique features like large surface to volume ratio, tailorable geometry, uniform pore sizes and homogeneous distribution of active sites. In this report, we address the thiophene-2-aldehyde modified 3D Zn-centred MOF IRMOF-3 following a post synthetic modification approach (schiff base IRMOF-3). Utilizing the excellent chelating ability of thiophene-2-aldehyd, Pd ions are immobilized over the host matrix MOF. The as-synthesized material was physicochemically characterized using a broad range of analytical techniques like FT-IR, electron microscopy, EDS, elemental mapping, and XRD. Subsequently the material has been catalytically employed in the classical Suzuki–Miyaura coupling towards the synthesis of diverse biphenyl derivatives at sustainable conditions. There are very few reports on the covalently modified MOFs towards the organic coupling reactions. The catalyst has been isolated by centrifugation and recycled in 10 consecutive runs with almost insignificant leaching and minute decrease in reactivity.