Please use this identifier to cite or link to this item: https://doi.org/10.1002/ejic.200600726
Title: Reactivity and X-ray structural studies in ligand substitution of [Cp/(Ind)-Ru(dppf)Cl] - Epimerisation in [Cp/(Ind)Ru(Josiphos)Cl] {Cp = η5-C5H5, Ind = η5-C 7H9, dppf = 1,1′-bis(diphenylphosphanyl)ferrocene, Josiphos = (R)-(-)-1-[(S)-2-(diphenylphosphanyl)ferrocenyl] ethyldicyclohexylphosphane}
Authors: Sin, Y.N.
Fang, G.
Weng, K.L. 
Lai, Y.G. 
Garland, M.V.
Keywords: dppf
Epimerisation
Indenyl
Josiphos
Phosphanes
Ruthenium
Issue Date: 2007
Citation: Sin, Y.N., Fang, G., Weng, K.L., Lai, Y.G., Garland, M.V. (2007). Reactivity and X-ray structural studies in ligand substitution of [Cp/(Ind)-Ru(dppf)Cl] - Epimerisation in [Cp/(Ind)Ru(Josiphos)Cl] {Cp = η5-C5H5, Ind = η5-C 7H9, dppf = 1,1′-bis(diphenylphosphanyl)ferrocene, Josiphos = (R)-(-)-1-[(S)-2-(diphenylphosphanyl)ferrocenyl] ethyldicyclohexylphosphane}. European Journal of Inorganic Chemistry (3) : 452-462. ScholarBank@NUS Repository. https://doi.org/10.1002/ejic.200600726
Abstract: Ligand substitution of [(Ind)Ru(PPh3)2Cl] (1) led to the isolation of [(Ind)Ru(PPh3)(Ph2P(CH2) 2C9H7}Cl] (2), [(Ind)Ru(dppf)Cl] (3) and [(Ind)Ru{(Ph2PCH2)3CMe}]PF6 ([4]PF6), and diastereoisomers [(R)- and (S)-(Ind)Ru(Josiphos)Cl] [(R)-5 and (S)-5], where (R)-(S)-Josiphos is the ferrocene-based chiral diphosphane ligand (R)-(-)-1-[(S)-2-(diphenylphosphanyl)ferrocenyl] ethyldicyclohexylphosphane. The Cp analogues of 5, viz. (R)-6 and (S)-6, were also obtained from [CpRu(PPh3)2Cl] (1a). Josiphos-dependent epimerisation was observed, with conversion of the (S) isomer to the (R) isomer in both cases. Chloride abstraction of 3 with NaPF 6 in CH3CN and NaN3 in EtOH gave [(Ind)Ru(dppf)(CH3CN)]PF6 ([7]PF6) and [(Ind)Ru(dppf)(N3)] (8), respectively. The azido ligand in 8 underwent [3+2] dipolar cycloaddition with dimethyl acetylenedicarboxylate to give a N-bound bis-(methoxycarbonyl)-1,2,3-triazolato complex, 9. X-ray crystal structures of the new complexes, except (R)-5, (S)-5 and (S)-6, have been determined. © Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
Source Title: European Journal of Inorganic Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/94689
ISSN: 14341948
DOI: 10.1002/ejic.200600726
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