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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 118 (1985), S. 444-449 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Palladium and Platinum(II) Complexes with the Anions of 6-Methyl-1,2,3-oxathiazin-4(3H)-one 2,2-Dioxide and N-2-PyrimidinylsulfanilamideWith the title ligand L = 3 the complexes K2[trans-PtCl2L2] (1) and K2[ML4] (M = Pt,Pd) (2, 4) have been obtained. The anion 5 of sulfadiazine and (nBu3P)(CI)PdCl2Pd(Cl)(PnBu3) give a dinuclear ligand bridged complex 6. The compounds are characterized by their IR and 1H NMR spectra. The structure of 1 was determined by X-ray structure analysis.
    Notes: Mit dem Titelliganden L = 3 werden die Komplexe K2[trans-PtCl2L2] (1) und K2[ML4] (M = Pt, Pd) (2, 4) erhalten. Das Sulfadiazin-Anion (5) bildet mit (nBu3P)(Cl)PdCl2Pd(Cl)(PnBu3) einen zweikernigen ligandverbrückten Komplex 6. Die Verbindungen werden spektroskopisch (IR, 1H-NMR) charakterisiert; die Struktur von 1 wird durch eine Röntgenstrukturanalyse bestimmt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metal Complexes with Biologically Important Ligands, XXXV. Nickel, Cobalt, Palladium, and Platinum Complexes with Schiff Bases of α-Amino Acids. A Contribution to the Mechanism of the Akabori ReactionVarious Schiff base complexes of nickel(II), cobalt(II), palladium(II), platinum(II), and platinum(IV) 3 - 6, 8 - 10 have been prepared from glycinatometal complexes and amide acetals. (N,N-Dimethylbenzylamine-C2,N)glycinatopalladium(II) (2a) reacts with formaldehyde to give the corresponding N-methylene Schiff base complex 11. Serine or threonine is formed from 11 and RCHO (R=H, Me) after reductive elimination of palladium using H2/Pd-C. By isolation of 11 it is confirmed that the Akabori reaction proceeds initially by attack of the aldehyde at the N-atom of the glycinate ligand. The template reaction of K2PtCl4 or Na2PdCl4 and amino acids or amino acid derivatives, respectively, with pyruvate affords a series of N-(1-carboxyethylidene) Schiff base complexes 13 - 16. The IR and NMR data (1H, 13C, 195Pt) of the compounds are reported.
    Notes: Verschiedene Schiffbase-Komplexe von Nickel(II), Cobalt(II), Palladium(II), Platin(II) und Platin(IV) 3 - 6, 8 - 10 werden aus Glycinatometall-Komplexen und Amidacetalen dargestellt. (N,N-Dimethylbenzylamin-C2,N)glycinatopalladium(II) (2a) setzt sich mit Formaldehyd zum entsprechenden N-Methylen-Schiffbase-Komplex 11 um, der mit weiterem Formaldehyd bzw. Acetaldehyd nach reduktiver Eliminierung von Palladium mit H2/Pd-C Serin bzw. Threonin liefert. Mit der Isolierung von 11 wird bestätigt, daß bei der Akabori-Reaktion Aldehyde primär am N-Atom des Glycinato-Liganden angreifen. Aus K2PtCl4 bzw. Na2PdCl4 und Aminosäuren bzw. Aminosäurederivaten wird durch Template-Reaktion mit Pyruvat eine Reihe von N-(1-Carboxyethyliden)-Schiffbase-Chelatkomplexen 13 - 16 erhalten. Die Verbindungen werden IR-und NMR-spektroskopisch (1H, 13C, 195Pt) charakterisiert.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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