Synthesis and characterization of new Pd(II) complexes of l-ethylphenylalanate |
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| Authors: | Abdol R. Hajipour Kazem Karami Azadeh Pirisedigh Arnold E. Ruoho |
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| Affiliation: | (1) Pharmaceutical Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, I.R. Iran;(2) Department of Pharmacology, University of Wisconsin, Medical Science Building, 1300 University Avenue, Madison, WI 53706-1532, USA |
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| Abstract: | Complex (S,S)-[Pd{C6H4(CH2CHNH2CO2CH2CH3)}(μ-Br)]2 (3) was prepared following the method by Vicente and Saura-Llamas (Organometallics 26:2768–2776, 2007), by the reaction of l-ethylphenylalanate and Pd(OAc)2 in 1:1 molar ratio under acetonitrile heating conditions and subsequently treating with NaBr. In addition, the cleavage of halogeno-bridge of the complex 3 via nucleophilic attack of some neutral ligands such as triphenylphosphine, pyridine, 2,4,6-trimethylpyridine and piperidine were investigated and the corresponding complexes (S)-[Pd{C6H4(CH2CHNH2CO2CH2CH3)(Y)(Br)}] (4a–f) were obtained in moderate yields. The six-member orthopalladated complexes were characterized by 1H-NMR, 31P-NMR, FT-IR and elemental analysis techniques. |
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