Reaktive Platin‐Komplexe mit α‐Aminosäurederivaten und ihre P‐ und N‐Kernresonanzspektren

Reactive Platinum Complexes with α‐Amino Acid Derivatives and their 31P‐ and 15N Nuclear Magnetic Resonance Spectra The α‐amino acidate chelate complexes (n‐Bu3P)(Cl)⊓PtNH2CH(R)COO (1a – c) (R = H, CH3, CHMe2) react with thionyl chloride, phosphorus pentachloride, or acetyl chloride by cleavage of the chelate ring to give complexes with α‐amino acyl chloride or acetic glycine anhydride as ligands: (n‐Bu3P)Cl2Pt(NH2CH2COCl) (2), (n‐Bu3P)Cl4Pt(NH2CH(CHMe2)COCl) (6), (n‐Bu3P)‐Cl2Pt(NH2CH2CO(O)OCCH3) (4). Using 15N enriched amino acids, the IR, 15N and 31P NMR spectra indicate cis orientation of phosphane and amino groups in all these complexes.