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'Redox Reactions' in keywords Facet   Publication Year 1982  [X]
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1Author    AngelikaAnna Meyer, Wolfgang Hartl, MalischRequires cookie*
 Title    Übergangsmetall-substituierte Phosphane, Arsane und Stibane, XXX [1] Redoxreaktionen zwischen Triorganodibromphosphoranen oder -arsoranen und Ubergangsmetall -Anionen Transition-Metal Substituted Phosphanes, Arsanes and Stibanes, XXX [1] Redox Reactions between Triorganodibromophosphoranes or -arsoranes and Transition Metal Anions  
 Abstract    The reaction of the sodium carbonyl metalate Na[W(CO)3Cp] with the phosphorane (Me3SiCH2)3PBr2 results in the formation of (Me3SiCH2)3PandCp(CO)3WBr or [Cp(CO)3W]2, respectively, depending on the solvent used. The redox reactions between Na[Mo(CO)3Cp] and the arsenic analogue (RCH2)3AsBr2 (R = Ph, Me3Si) yield the products Cp(CO)sMoBr and (RCH2)3As. A mechanism involving radicals is discussed. At elevated temperatures the products react further to give the square pyramidal complexes cts-Cp(CO)2[As(CH2R)3]MBr (1, 2a, b) with loss ofCO. In an analogous manner Cp(CO)3MBr (M = Mo, W) and (RCH2)3E (E = As, Sb) afford compounds ci.s-Cp(CO)2[E(CH2R)3]MBr (2c, 3). The dynamic behaviour of the chiral complexes 1, 2a, b, was investigated by X H NMR spectroscopy. 
  Reference    Z. Naturforsch. 37b, 845—850 (1982); eingegangen am 2. Februar 1982 
  Published    1982 
  Keywords    Transition Metal Nucleophiles, Redox Reaction, Stereospecific CO-Substitution, Dynamic Behaviour 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0845.pdf 
 Identifier    ZNB-1982-37b-0845 
 Volume    37