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

  • Mazin Abdulkhaliq Othman Department of Chemistry College of Science, Salahaddin University-Erbil, Kurdistan region-Iraq.
Keywords: Palladium, Cyclodextrin, nanocomposites, Calalytic activity, Homocoupling, Arylboronic acid.


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


Astruc, D. Palladium nanoparticles as efficient green homogeneous and heterogeneous carbon-carbon coupling precatalysts: A unifying view. Inorganic Chemistry, 2007, 46, 1884–1894.
Astruc, D.; Lu, F.; Aranzaes, J. R., Angewandte Chemie, International Edition in English 2005, 44 (48), 7852-72.
Azzedine Bouleghlimat, Mazin A. Othman, Louis V. Lagrave, Soichiro Matsuzawa, Yoshinobu Nakamura, Syuji Fujii, and Niklaas J. Buurma, , Halide-Enhanced Catalytic Activity of Palladium Nanoparticles Comes at the Expense of Catalyst Recovery, Catalysts, 2017, 7(9), 280
Babak Kaboudin, Hadi Salemi, Ramin Mostafalu, Foad Kazemi and Tsutomu Yokomatsu, Journal of Organometallic Chemistry 2016, 818, 195-199.
Dell’Anna, M.M.; Mali, M.; Mastrorilli, P.; Rizzuti, A.; Ponzoni, C.; Leonelli, C. Suzuki-Miyaura coupling under air in water promoted by polymer supported palladium nanoparticles. Journal of Molecular Catalysis. A Chemistry. 2013, 366, 186–194.
Karimi, B.; Behzadnia, H.; Farhangi, E.; Jafari, E.; Zamani, A. Recent Application of Polymer Supported Metal Nanoparticles in Heck, Suzuki and Sonogashira Coupling Reactions, Current Organic Synthesis. 2010, 7, 543–567.
Kenneth A. Connors, The Stability of Cyclodextrin Complexes in Solution, Chemical review, 1997, 97, 5, 1325-1358.
Mazin A. Othman and N. J. Buurma, PhD thesis, The palladium-catalysed aerobic oxidative homocoupling reaction of arylboronic acids in aqueous micellar medium kinetic and mechanistic studies, School of Chemistry, Cardiff University, UK, 2011.
Moreno-Manas, M.; Pleixats, R., Formation of Carbon−Carbon Bonds under Catalysis by Transition-Metal Nanoparticles, Accounts of Chemical Research, 2003, 36 (8), 638-43
Pérez-Lorenzo, M. J. Palladium nanoparticles as efficient catalysts for Suzuki cross-coupling reactions. Physical Chemmistry Letters, 2012, 3, 167–174
Sawoo, S.; Srimani, D.; Dutta, P.; Lahiri, R.; Sarkar, A. Size controlled synthesis of Pd nanoparticles in water and their catalytic application in C-C coupling reactions. Tetrahedron 2009, 65, 4367–4374.
Taladriz-Blanco, P.; Hervés, P.; Pérez-Juste, J. Supported pd nanoparticles for carbon-carbon coupling reactions. Topics in Catalysis, 2013, 56, 1154–1170.
How to Cite
Othman, M. (2020) “Stability of Palladium(II) beta-cyclodextrin nanocomposite in aqueous media and its catalytic activity in Homocoupling of Arylboronic acid”, Zanco Journal of Pure and Applied Sciences, 32(4), pp. 114-121. doi: 10.21271/ZJPAS.32.4.14.
Biology and Medical Researches