Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jorganchem.2010.08.017
Title: Co-ligand effects in the catalytic activity of Pd(II)-NHC complexes
Authors: Yeung, A.D. 
Ng, P.S.
Huynh, H.V. 
Keywords: Boronic acids
Co-ligands effects
Conjugate addition
Mizoroki-Heck coupling
N-Heterocyclic carbenes
Palladium
Issue Date: 1-Jan-2011
Citation: Yeung, A.D., Ng, P.S., Huynh, H.V. (2011-01-01). Co-ligand effects in the catalytic activity of Pd(II)-NHC complexes. Journal of Organometallic Chemistry 696 (1) : 112-117. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jorganchem.2010.08.017
Abstract: Three cis-chelating di-N-heterocyclic carbene palladium(II) complexes [PdX2(diNHC)] (X = I, 1; X = SCN, 2; X = CF3CO 2, 3) bearing different anionic co-ligands were synthesized and fully characterized. A comparison of their catalytic activities in the Mizoroki-Heck reaction and conjugate addition of arylboronic acids to cyclic enones revealed increasing efficiency in the order SCN- < I- < CF3CO2 -. The di(trifluoroacetato) complex 3 showed the best activity in both transformations highlighting the importance of co-ligands effects in catalysis. In addition, the molecular structure of an unusual poly-heteronuclear complex salt 4 is reported, which has been isolated as a byproduct in the synthesis of complex 3. © 2010 Elsevier B.V. All rights reserved.
Source Title: Journal of Organometallic Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/93324
ISSN: 0022328X
DOI: 10.1016/j.jorganchem.2010.08.017
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