205325-97-9Relevant academic research and scientific papers
Metal complexes of biologically important ligands, XCVIII [1] cyclopalladated Schiff bases of α-amino acid and peptide esters
B?hm, Andreas,Schreiner, Bernhard,Steiner, Norbert,Urban, Reinhold,Sünkel, Karlheinz,Polborn, Kurt,Beck, Wolfgang
, p. 191 - 205 (1998)
The reactions of Schiff bases from benzophenone and α-amino acid and peptide esters with tetrachloropalladate afford the chloro bridged ortho palladated complexes 1 - 8 and 11 - 18. The chloro bridges are cleaved by P and N donors (PR3, pyridine, α-amino acid ester) to give the monomeric complexes 19 - 35. From 1, 2, 3 and bidendate ligands (dppe, α-amino carboxylates, cysteine methyl ester) the bis(chelates) 36 - 41, with N-diphenylmethylene glycylglycine ester the C,N,N chelates 46 and 47 are obtained. The complexes 14, 23 and 47 were characterized by X-ray diffraction. Due to the two neighbouring five membered chelate rings in 47 a considerable distortion from the square planar coordination is observed.
