Synthesis, spectroscopic characterization and catalytic significance of Palladium(II) complexes derived from 1,1 bis(diphenylphosphinomethyl)ethane
2011
Warad, Ismail | Ājama, Mohāmmada | Karama, Usama | Al-Resayes, Saud | Aouissi, Ahmed | Hammouti, Belkheir
Two novel and neutral bidentate Palladium(II) complexes of the type, [PdX₂(dpme)] (X=Cl 1, OAc 2], have been synthesized from 1,1-bis(diphenylphosphinomethyl)ethene (dpme) ligand and characterized on the basis of elemental analyses, infrared, FAB-MS and ¹H-, ¹³C-, and ³¹P-NMR spectroscopy. The structure of 1 has been ascertained by single crystal X-ray crystallography and shows cis configuration in a square planar structure while the structural behavior of the dpme ligand through the formation of these complexes has been monitored by ³¹P{¹H} NMR and IR spectra. These Pd(II) complexes have shown a very significant catalytic role in Heck reaction giving high yield under mild condition.
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