Adenine based Bio UiO-66 with Pd(II) as a novel catalyst for green Suzuki cross-coupling in aqueous media

The novel developed heterogeneous catalyst Ad/Pd-UiO-66 has been synthesized by hydrothermal technique. The prepared catalyst was identified by some analytical techniques such as Fourier transform-infrared spectroscopy (FT-IR), high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-SEM). The Ad/Pd-UiO-66 was used as catalyst in the Suzuki C-C coupling in the green aqueous media. This catalyst showed excellent efficiency for the C-C coupling of aryl halides with phenylboronic acid and 4-methyl phenylboronic acid. The best results was recorded for coupling of iodobenzene with phenylboronic acid (95% conversion in 30 min). Furthermore, the stability and recyclability of the catalyst under optimized conditions were investigated. The catalyst was recovered and reused up to 5 times with no significant decrease in activity. The novel Ad/Pd-UiO-66 heterogeneous catalyst have been synthesized and identified by analytical techniques and used as catalyst in the Suzuki C-C coupling in the green aqueous media. This catalyst showed excellent efficiency for the C-C coupling of aryl halides with phenylboronic acid. Furthermore, the stability and recyclability of the catalyst under optimized conditions were investigated. The catalyst was recovered and reused up to 5 times with no significant decrease in activity.image

Automated summary

A novel Ad/Pd-UiO-66 heterogeneous catalyst was synthesized via hydrothermal technique and identified using various analytical techniques. This catalyst exhibited excellent efficiency for the Suzuki C-C coupling of aryl halides with phenylboronic acid in green aqueous media. Furthermore, the stability and recyclability of the catalyst under optimized conditions were investigated, showing no significant decrease in activity after 5 cycles of recovery and reuse.