Please use this identifier to cite or link to this item: 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
Issue Date: Jun-2006
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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