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Title: Mixed carbene-isocyanide Pd(ii) complexes: Synthesis, structures and reactivity towards nucleophiles
Authors: Han, Y. 
Huynh, H.V. 
Issue Date: 2009
Citation: Han, Y., Huynh, H.V. (2009). Mixed carbene-isocyanide Pd(ii) complexes: Synthesis, structures and reactivity towards nucleophiles. Dalton Transactions (12) : 2201-2209. ScholarBank@NUS Repository.
Abstract: Reaction of the bromo-bridged dimeric monocarbene complex [PdBr 2(iPr2-bimy)]2 (1) ( iPr2-bimy = 1,3-diisopropylbenzimidazolin-2-ylidene) with various isocyanides afforded a series of mixed carbene-isocyanide complexes [PdBr2(iPr2-bimy)(CN-R)] (2a: R = Cy; 2b: R = nBu; 2c: R = Xyl) as inseparable mixtures of trans- and cis-isomers. The reactivity of 2c towards nucleophiles was studied. A new mixed NHC-ADC Pd(ii) complex (4) was obtained in low yield when 2c was reacted with 2,6-dimethylaniline. Reaction of 2c with hydrazine yielded a hydrazine-bridged complex (6) via ligand substitution. In addition, salt metathesis of 2c with AgO2C2F3 afforded a cis arranged complex [Pd(O2CCF3)2(iPr2-bimy) (CN-Xyl)] (cis-7). Most complexes were fully characterized by multinuclei NMR spectroscopies, ESI or FAB mass spectrometry and X-ray diffraction analysis. © 2009 The Royal Society of Chemistry.
Source Title: Dalton Transactions
ISSN: 14779226
DOI: 10.1039/b816471a
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