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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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Article information


Submitted
30 Jun 2004
Accepted
15 Sep 2004
First published
29 Sep 2004

Dalton Trans., 2004, 3521-3527
Article type
Paper

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, 3521
DOI: 10.1039/B409942G

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