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https://hdl.handle.net/11147/2119
Title: | Effect of immobilization on catalytic characteristics of saturated Pd-N-heterocyclic carbenes in Mizoroki-Heck reactions | Authors: | Aksın, Özge Türkmen, Hayati Artok, Levent Çetinkaya, Bekir Ni, Chaoying Büyükgüngör, Orhan Özkal, Erhan |
Keywords: | C-C coupling Heterocyclic carbene Heterogeneous catalyst Immobilized palladium Mizoroki-Heck reaction Palladium leaching Organometallics |
Publisher: | Elsevier Ltd. | Source: | Aksın, O., Türkmen, H., Artok, L., Çetinkaya, B., Ni, C., Büyükgüngör, O., and Özkal, E. (2006). Effect of immobilization on catalytic characteristics of saturated Pd-N-heterocyclic carbenes in Mizoroki-Heck reactions. Journal of Organometallic Chemistry, 691(13), 3027-3036. doi:10.1016/j.jorganchem.2006.03.012 | Abstract: | A saturated Pd-N-heterocyclic complex was immobilized on an amorphous silica. The complex itself is of very high thermal stability. However, TEM observations, hot filtration, reusability, and poisoning tests all revealed that the complex acted only as a precatalyst to highly active Pd species in Mizoroki-Heck reactions when immobilized. The complex appears more stable when used under homogeneous reaction conditions. The immobilized complex afforded high turnover numbers, 104-105. The higher turnover frequencies were realized at the lower Pd concentrations, which is a characteristic property of ligand-free Pd catalyzed reactions. | URI: | 10.1016/j.jorganchem.2006.03.012 http://hdl.handle.net/11147/2119 |
ISSN: | 0022-328X 0022-328X |
Appears in Collections: | Chemistry / Kimya Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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