Please use this identifier to cite or link to this item: https://doi.org/10.1039/b907887h
Title: Syntheses and catalytic activities of pseudo-pincer and CSC pincer-type Pd(II) complexes derived from benzannulated N-heterocyclic carbenes
Authors: Huynh, H.V. 
Yuan, D.
Han, Y. 
Issue Date: 2009
Citation: Huynh, H.V., Yuan, D., Han, Y. (2009). Syntheses and catalytic activities of pseudo-pincer and CSC pincer-type Pd(II) complexes derived from benzannulated N-heterocyclic carbenes. Dalton Transactions (35) : 7262-7268. ScholarBank@NUS Repository. https://doi.org/10.1039/b907887h
Abstract: Three new dibenzimidazolium salts bearing thioether (B·2HBr, B·2HNO3) and sulfoxide (C·2HBr) containing bridges have been synthesized as sulfur-functionalized dicarbene precursors. Palladation of B·2HBr and C·2HBr afforded two new pseudo-pincer complexes cis-[PdBr2(B-κ2C)] (1) and cis-[PdBr 2(C-κ2C)] (2), in which the sulfur-donor remains pendant. Reaction of precursor B·2HNO3 in the presence of 1 equiv of KBr, on the other hand, yields the first CSC-Pd(II) pincer complex [PdBr(B-κ3CSC)]NO3 (3) bearing two carbene moieties. All three complexes have been fully characterized by multinuclei NMR spectroscopies, ESI mass spectrometry and X-ray diffraction analysis. Their catalytic activities in the Mizoroki-Heck reaction have been evaluated as well. © 2009 The Royal Society of Chemistry.
Source Title: Dalton Transactions
URI: http://scholarbank.nus.edu.sg/handle/10635/95002
ISSN: 14779226
DOI: 10.1039/b907887h
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