Pd immobilization biguanidine modified Zr-UiO-66 MOF as a reusable heterogeneous catalyst in Suzuki-Miyaura coupling.

Autor: Veisi H; Department of Chemistry, Payame Noor University, Tehran, Iran. hojatveisi@yahoo.com., Abrifam M; Department of Chemistry, Payame Noor University, Tehran, Iran., Kamangar SA; Department of Chemistry, Payame Noor University, Tehran, Iran., Pirhayati M; Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran., Saremi SG; Department of Chemistry, Payame Noor University, Tehran, Iran., Noroozi M; Center for Research and Development of Petroleum Technologies at Kermanshah, Research Institute of Petroleum Industry (RIPI), Tehran, Iran., Tamoradi T; Department of Chemistry, Production Technology Research Institute-ACECR, Ahvaz, Iran. t.tabss@yahoo.com., Karmakar B; Department of Chemistry, Gobardanga Hindu College, 24-Parganas (North), Gobardanga, India. bkarmakar@ghcollege.ac.in.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2021 Nov 08; Vol. 11 (1), pp. 21883. Date of Electronic Publication: 2021 Nov 08.
DOI: 10.1038/s41598-021-00991-3
Abstrakt: 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 biguanidine modified 3D Zr-centred MOF UiO-66-NH 2 following a post synthetic modification approach. Utilizing the excellent chelating ability of biguanidine, 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, XRD and ICP-OES. 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 9 consecutive runs with almost insignificant leaching and minute decrease in reactivity.
(© 2021. The Author(s).)
Databáze: MEDLINE
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