Metallkomplexe mit biologisch wichtigen Lisganden, LXXX. (η3:η3‐C10H16)Ru(IV)‐Komplexe mit α‐Aminocarboxylaten, α‐Aminosäureestern und Peptidestern als Liganden

Abstract

Metal Complexes Containing Biologically Important Ligands, LXXXLXXIX. Mitteilung: Lit. . — (η3:η3‐C10H16)Ru(IV) Complexes with α‐Amino Carboxylates, α‐Amino Acid Esters, and Peptide Esters as Ligands Reactions of the chloro‐bridged bis(allyl) complex [(η3:η3‐C10H16)Ru(Cl)(μ‐Cl)]2 with α‐amino carboxylates and α‐amino acid esters afford the complexes (η3:η3‐C10H16)(Cl)Rmagnified imageuNH2CHRCO2 (2) and (η3:η3‐C10H16)(Cl)2‐RuNH2CHRCO2R′ (3). Abstraction of chloride from 3 by Ag+ gives the N,O‐chelates [(η3:η3‐C10H16)(Cl)Rmagnified imageuNH2CHRCO2R′]+BF4 (4). Cysteine methyl ester forms the N,S‐chelate complex (η3:η3‐C10H16)(Cl)Rmagnified imageuNH2CH(CO2CH3)CH2S (5), and with histidine methyl ester a dinuclear complex 6 with N,N‐histidine bridge is obtained. Compound 3d with L‐PheOEt as ligand was characterized by X‐ray diffraction.