474358-93-5Relevant academic research and scientific papers
About the different reactivity of dinuclear palladium and platinum compounds with trispyrrolylphosphine: Synthesis and X-ray crystallographic results of new palladium complexes containing P-pyrrolyl bonds
Angurell, Inma,Martínez-Ruiz, Isabel,Rossell, Oriol,Seco, Miquel,Gómez-Sal, Pilar,Martín, Avelino,Font-Bardia, Mercé,Solans, Xavier
, p. 3882 - 3891 (2007)
The reaction of [Pt(μ-Cl)(κ,η2-COE-MeO)]2 (2) (COE-MeO = 2-methoxy-5-cycloocten-1-yl) with trispyrrolylphosphine yields [PtCl{P(pyrl)3}(κ,η2-COE-MeO)] (3), in contrast to the crown-cycle complex [Pd(μ-Cl) {P(pyrl)3}]8 (1) obtained with the analogous palladium complex. The different reactivity has been explained in terms of the higher lability of the carbon-carbon double bond in the starting palladium compound, as compared with the related platinum derivative. The reaction of 1 with the ligand 2-[(pyridin-2-ylmethylene)aminophenol], (HNN′O), in the presence of thalium salt and NEt3, yields the complex [Pd(κ3N,N′,O-py-CH{double bond, long}N-C6H4O)(P(O)(pyrl)2)] (5), which contains, for the first time, a di(N-pyrrolyl)phosphonato-P ligand. Treatment of [PdCl(κ3N,N′,O-py-CH{double bond, long}N-C6H4O)] with P(pyrl)3 gives the amido derivative [PdCl{κ3P,N,N-(P(pyrl)2-O-C6H4-N-CH(CH2-CO-CH3)-py)}] (7), which displays a N-Pd-P-O-C2 six-membered metallacycle. In addition, the latter compound has been able to insert an acetone molecule into its framework. The crystal structures of 5 and 7 were solved by X-ray diffraction analysis.
