Stability of Palladium(II) beta-cyclodextrin nanocomposite in aqueous media and its catalytic activity in Homocoupling of Arylboronic acid

Mazin A. Othman

doi:10.21271/ZJPAS.32.4.14

Authors

Mazin A. Othman Department of Chemistry College of Science, Salahaddin University-Erbil, Kurdistan region-Iraq.

DOI:

https://doi.org/10.21271/ZJPAS.32.4.14

Keywords:

Palladium, Cyclodextrin, nanocomposites, Catalytic activity, Homocoupling, Arylboronic acid.

Abstract

Palladium(II) beta-Cyclodextrin (Pd(II)-b-CD) nanocomposites are water-soluble compounds which can be of great importance for performing palladium-catalyzed reactions in aqueous media. The stability of water-soluble Pd(II)-b-CD nanocomposites in water were examined and was found that this nanocomposit is losing its stability in water significantly with time in the time interval of 0 to 200 minutes. In addition, the Pd(II)-b-CD nanocomposite was used as a catalyst for Aerobic homocoupling of arylboronic acid (ArBA) in water. However, the results showed that the catalytic activity of same prepared Pd(II)-b-CD nanocomposite stock solution in water for homocoupling reaction of ArBA decreases with time significantly. The Stability of the Pd(II)-b-CD nanocomposite was monitored using Ultra Violet- Visible (UV-Vis) spectroscopy. used to monitor the catalyst stability

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