• Keine Ergebnisse gefunden

Metal Complexes of Biologically Important Ligands, CLXIX [1]. Palladium(II) and Platinum(II) N,O-Chelate Complexes (R

N/A
N/A
Info
Herunterladen
Protected

Academic year: 2022

Aktie "Metal Complexes of Biologically Important Ligands, CLXIX [1]. Palladium(II) and Platinum(II) N,O-Chelate Complexes (R"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Jetzt herunterladen ( 1 Seite )

Volltext

(1)

Metal Complexes of Biologically Important Ligands, CLXIX [1].

Palladium(II)and Platinum(II) N,O -Chelate Complexes

(R

3

P)(Cl)M( α -aminoacidate)with the Anions of Serine, Threonine, 3,4-Dehydroproline and 4-Hydroxyproline

Elfriede Schuhmann and Wolfgang Beck

Department Chemie und Biochemie der Ludwig-Maximilians-Universit¨at, Butenandtstr. 5 – 13, 81377 M¨unchen, Germany

Reprint requests to Prof. W. Beck. E-mail: wbe@cup.uni-muenchen.de Z. Naturforsch.2008,63b,124 – 128; received October 9, 2007 Dedicated to the memory of Professor Heinz Peter Fritz

TheN,O-chelates M(3,4-dehydro-D,L-prolinate)2(M = Ni, Cu) have been obtained from Ni(OH)2 or Cu(OH)2and the amino acid. The complexes (R3P)(Cl)M(α-aminoacidate) (M = Pd, Pt) have been synthesized from the chloro bridged compounds (R3P)(Cl)M(µ-Cl)2M(PR3)Cl (M = Pd, Pt; R = Et, n-Bu, Ph) and the potassium salts of theα-amino acidsD,L-serine,D,L-threonine, 3,4-dehydro-D,L- proline and 4-hydroxy-L-proline. According to the31P NMR and13C NMR spectra the complexes with serinate and threoninate are formed as mixtures ofcis/transN-M-P isomers, whereas for the palladium complexes with 3,4-dehydroprolinate and 4-hydroxyprolinate a single isomer is observed.

Key words:α-Aminoacidate, Palladium, Platinum, Serine, Threonine, 3,4-Dehydroproline, 4-Hydroxyproline

Referenzen

Jetzt herunterladen ( PDF - 1 Seite - 32.35 KB )

ÄHNLICHE DOKUMENTE

Syntheses and Structures of Silver(I) and Palladium(II) Complexes with Ferrocenyl-phosphonodithiolate Ligands

The distorted tetra- hedral silver(I) coordination led to non-planar and distorted four-membered AgS 2 P rings in 1 and 2, whereas the square-planar palladium(II) coordination

Metal Complexes of Biologically Important Ligands, CLXXIV [1]. Palladium(II) and Platinum(II) Complexes with Schiff Bases from 2-(Diphenylphosphino)benzaldehyde and α-Amino Acid Esters

Bernhard Schreiner, Christian Robl, Barbara Wagner-Schuh, and Wolfgang Beck Department Chemie und Biochemie, Ludwig-Maximilians-Universit¨at M¨unchen, Butenandtstraße 9 – 13,

Cytotoxic Activity of Platinum(II) and Palladium(II) Complexes of N-3-Pyridinylmethanesulfonamide: the Infl uence of Electroporation

c German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany. * Author for correspondence and

Cytotoxic Activity of Platinum(II) and Palladium(II) Complexes of N-3-Pyridinylmethanesulfonamide: the Infl uence of Electroporation

Most representatives of the Pt(II) and Pd(II) complexes with the sulfonamide substituted py- ridine ligand PMSA exhibited cytotoxic activity against SKW-3 and MDA-MB-231 tumour cells

Metal Complexes of Biologically Important Ligands, CLXIX [1]. Palladium(II) and Platinum(II) N,O-Chelate Complexes (R

The phosphine-containing chelate complexes 3 – 10 are formed by reaction of the chloro-bridged palla- dium(II) and platinum(II) compounds (R 3 P)(Cl)( µ - Cl) 2 M(PR 3 )(Cl) with

Palladium(II) Complexes with Benzoxazol-2-ylidene Ligands: Crystal Structures of trans-Chloro(benzoxazol-2-ylidene)- bis(triphenylphosphine)palladium(II) Chloride and cis-Diiodo(benzoxazol-2-ylidene)(triphenylphosphine)palladium(II)

Institut f¨ur Anorganische und Analytische Chemie, Westf¨alische Wilhelms-Universit¨at M¨unster, Wilhelm-Klemm-Straße 8, D-48149 M¨unster, Germany. Reprint requests

Metal Complexes of Biologically Important Ligands, CXXXI*.

Pentamethylcyclopentadienyl Halfsandwich Complexes of Rhodium and Iridium with Glycosyl- α -iminocarboxylates as Chelate Ligands. Stefan Krawielitzki und

Transition metal complexes with P,N-ligands and silylenes : synthesis and catalytic studies

Evaporation of the volatiles afforded the crude product that was purified by column chromatography on silica eluting with ethyl acetate (2% ethanol).. The crude product was