Ligand-free Suzuki coupling reaction with highly recyclable ionic palladium catalyst, Ti1-xPdxO2-x (x�=�0.03)

Bhat K, S and Lanke, V and Prasad, JD and Prabhu, KR (2020) Ligand-free Suzuki coupling reaction with highly recyclable ionic palladium catalyst, Ti1-xPdxO2-x (x�=�0.03). In: Applied Catalysis A: General, 596 .

	PDF app_cat_gen_596_2020.pdf - Published Version Restricted to Registered users only Download (2MB) | Request a copy
	Microsoft Word 1-s2.0-S0926860X20301095-mmc1.doc - Published Supplemental Material Restricted to Registered users only Download (5MB) | Request a copy

Abstract

We synthesized a recyclable palladium ionic catalyst, Ti0.97Pd0.03O1.97, using a solution combustion method (SCM), and characterized by XRD and Rietveld refinement. The synthesized Pd ionic catalyst is stable, insensitive to moisture and air, and easy to handle. The new catalyst has exhibited a phenomenal result for the Suzuki-Miyaura cross-coupling reaction with a broad substrate scope, and the reaction proceeds in an aqueous medium. The new catalyst proved beneficial and produced excellent yields irrespective of aryl halide used in the reaction (electron-rich or electron-poor or heterocyclic compounds) and shown a turnover frequency (TOF) of 14�25 h�1 for different reactions. The catalyst was coated on a cordierite monolith (Mg2Al4Si5O18), which enhanced the applicability of the catalyst, and made the handling and recycling of the catalyst very easy. Suzuki Miyaura reaction was carried out using both Pd-powder catalysts as well as the Pd-coated honeycomb, which gave almost similar results. We have demonstrated the recyclability of Pd coated cordierite monolith and shown the superiority of the catalyst over the other Pd catalysts for the Suzuki-Miyaura reaction. © 2020 Elsevier B.V.

Item Type:	Journal Article
Publication:	Applied Catalysis A: General
Publisher:	Elsevier B.V.
Additional Information:	Copyright of this article belongs to Elsevier B.V.
Department/Centre:	Division of Chemical Sciences > Organic Chemistry
Date Deposited:	01 Apr 2021 08:33
Last Modified:	01 Apr 2021 08:33
URI:	http://eprints.iisc.ac.in/id/eprint/64948

Actions (login required)

View Item