Cycloaddition reactions of (R3P) 2M(N3)2 (M = Pd, Pt) with organic nitriles, thiocyanates, isothiocyanates, dimethylacetylenedicarboxylate and carbon disulphide are described; an X-ray analysis of the crystal structure of bis (5-phenyltetrazolato) -bis (triphenylphosphine) palladium (II) is summarised and related to isomerism of the complex in solution.
Azidochelatcobalt(I1I)-Verbindungen
Reactions of Azidocobalt(I11) Chelate Complexes with lsocyanidesAzidochelatecobalt(Il1) complexes N,Co(chelate)B (la -e) [chelate = e. g. dianion of N,N '-0-phenylenebis(salicyldenimine), B = PPhJ react with organic isocyanides to give metal-carbon bonded tetrazolate complexes 3, 4. 2-lsocyanoethanol affords tetrazolato-(9. 10) or azidooxazolidin-2-ylidene complexes (ll), depending on the nature of the solvent, the trans-base B, and the chelate ligand. The mechanism of formation of C-coordinated tetrazoles from azido complexes and isonitriles is discussed.
Cycloadditionsreaktionen der cis‐Komp1exe (I), dargestellt aus Tetraazidometallat(II) und Triphenylphosphin oder Carbonato(Dichloro)‐bis‐[triphenylphosphin]‐metall und Na‐azid, mit organischen Nitrilen, Thiocyanaten, Iso(thio)‐ cyanaten, CS2 und Dimethylacetylendicarboxylat führen zu den entsprechenden Produkten (II)‐(VI).
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