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Issue 21, 2004
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Condensation reactions of monomeric hydroxo palladium complexes with active methyl and methylene compounds

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Abstract

Heating a suspension of the monomeric hydroxo palladium complex of the type [Pd(N–N)(C6F5)(OH)] (N–N = bipy, Me2bipy, phen or tmeda) in methylketone (acetone or methylisobutylketone) under reflux affords the corresponding ketonyl palladium complex [Pd(N–N)(C6F5)(CH2COR)]. On the other hand, the reaction of the hydroxo palladium complexes [Pd(N–N)(C6F5)(OH)] (N–N = bipy, phen or tmeda) with diethylmalonate or malononitrile yields the C-bound enolate palladium complexes [Pd(N–N)(CHX2)(C6F5)] (X = CO2Et or CN), and the reaction of [Pd(N–N)(C6F5)(OH)] (N–N = bipy or phen) with nitromethane gives the nitromethyl palladium complexes [Pd(N–N)(CH2NO2)(C6F5)]. [Pd(tmeda)(C6F5)(OH)] catalyses the cyclotrimerization of malononitrile. The crystal structures of [Pd(bipy)(C6F5)(CH2COMe)]·½Me2CO, [Pd(tmeda)(C6F5){CH(CO2Et)2}], [Pd(tmeda)(C6F5){CH(CN)2}] and [Pd(tmeda)(C6F5)(CH2NO2)]·½CH2Cl2 have been established by X-ray diffraction.

Graphical abstract: Condensation reactions of monomeric hydroxo palladium complexes with active methyl and methylene compounds

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Publication details

The article was received on 30 Jun 2004, accepted on 15 Sep 2004 and first published on 29 Sep 2004


Article type: Paper
DOI: 10.1039/B409942G
Citation: Dalton Trans., 2004,0, 3521-3527
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    Condensation reactions of monomeric hydroxo palladium complexes with active methyl and methylene compounds

    J. Ruiz, M. T. Martínez, V. Rodríguez, G. López, J. Pérez, P. A. Chaloner and P. B. Hitchcock, Dalton Trans., 2004, 0, 3521
    DOI: 10.1039/B409942G

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