Synthesis and characterization of new ionic liquid-based Pd(II) and Pt(II) complexes of phosphinite: Use of palladium(II) complexes as pre-catalyst in Suzuki–Miyaura and Mizoroki-Heck cross-coupling reactions
Sanabay N. Meri̇ç N. Kayan C. Kerimkulova A. Rafikova K. Kozhaisakova M. Selenova B. Aydemir M.
June 2026Elsevier Ltd
Tetrahedron
2026#194
The palladium-catalyzed Suzuki–Miyaura and Mizoroki-Heck cross-coupling reactions are powerful tools to prepare unsymmetrical biaryl and stilbene compounds, which have been used in different areas, such as herbicides and natural product synthesis. Hence, four new Pd(II) and Pt(II) complexes (5–8) of the phosphinite ligands based on ionic liquid were synthesized. All complexes were isolated as analytically pure substances and characterized by multinuclear NMR and IR spectroscopy, and elemental analysis. The catalytic activity of palladium complexes 5 and 6 was investigated in Suzuki–Miyaura and Mizoroki-Heck cross-coupling reactions in homogeneous catalysis. The complexes were highly active catalysts in coupling a series of aryl halides with phenylboronic acid under optimum conditions in water, giving rise to turnover frequency up to 47040 h−1 in Suzuki-Miyaura coupling reactions. Short reaction times with good to excellent yields of the desired products express the effectiveness of this catalyst in these reactions. Furthermore, the palladium complexes also displayed good catalytic activity in Mizoroki-Heck reaction affording trans-stilbenes.
Catalysis , Ionic liquid , Palladium , Platinum , Sustainable development , Suzuki-Miyaura and Mizoroki-Heck cross-coupling reaction
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Satbayev University, Department of Chemical and Biochemical Engineering, Almaty, Kazakhstan
Department of Chemistry, Faculty of Science, University of Dicle, Diyarbakir, 21280, Turkey
Dicle University, Technical Vocational School, Department of Hair Care and Beauty Services, Diyarbakir, 21280, Turkey
Science and Technology Application and Research Center (DUBTAM), Dicle University, Diyarbakir, 21280, Turkey
Faculty of Food Technology Department of Chemistry, Chemical Technology and Ecology, Almaty Technological University, Almaty, 050012, Kazakhstan
Satbayev University
Department of Chemistry
Dicle University
Science and Technology Application and Research Center (DUBTAM)
Faculty of Food Technology Department of Chemistry
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