Pd nanoparticles deposited on Isoniazid grafted multi walled carbon nanotubes: synthesis, characterization and application for Suzuki reaction in aqueous media

Abstract

In this article a new heterogeneous nanocatalyst based on palladium supported on Isoniazide-functionalized multi-walled carbon nanotubes (MWCNTs) has been introduced. The synthetic process of preparation of the mentioned nanocatalyst (Isoniazide-MWCNTs/Pd) has been described. The formation of the nanocatalyst was analyzed by FTIR, Raman spectroscopy, XRD, EDS, TEM, SEM, WDX, ICP and CHN analyses. Additionally, the Isoniazide-MWCNTs/Pd nanocatalyst was successfully employed in Suzuki cross coupling reactions with a wide variety of functionalized substrates. Experiments indicate that the use of 0.2 mol% of Pd, K₂CO₃ as the base, and aqueous ethanol are the best reaction conditions. Interestingly, the novel catalyst could be recovered and recycled four times without any significant loss in its catalytic activity.