Palladium nanocatalyst supported on chitosan and its catalytic performance in Suzuki��?Miyaura coupling reactions

The Biopolymers were used as supports for the preparation of palladium-based nanoparticles (pd- NPs). The chitosan-based Pd (II) catalyst (non-toxic, cheap, eco-friendly) were structurally characterized using a range of methods such as Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Differential scanning calorimetry (DSC), Differential thermal analysis (DTA), Xray photoelectron spectroscopy (XPS ), transmission electron microscopy (TEM), scanning electron microscopy (SEM).( Fig 1,2) palladium is commonly known as best catalyst in the Suzuki–Miyaura coupling reactions due to its very high efficiency therefore, using the recently chitosanbased Pd (II) catalyst in the Suzuki–Miyaura coupling reactions, will be described. The reaction optimization and substrate scope will be discussed, and role of rapid catalyst activation in achieving mild reaction conditions will be emphasized.

Author(s): Hamad M. Al-Matar and Wael Tohamy

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