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'Nickel O' in keywords Facet   Publication Year 1984  [X]
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1984[X]
1Author    Heinz Hoberg, Klaus SümmermannRequires cookie*
 Title    Nickel(0)-katalysierte Synthese von Iminen aus Isocyanaten und Aldehyden Nickel(O) Catalysed Synthesis of Imines from Isocyanates and Aldehydes  
 Abstract    The influence of different ligands upon the nickel(0)-catalysed formation of imines from iso­ cyanates and aldehydes is reported. Carbonyl-free nickel(O) systems are found to be more active and provide a simple synthesis of imines. The catalysis proceeds via a five-membered metalla-cycle, which has been isolated and characterized. 
  Reference    Z. Naturforsch. 39b, 1032—1036 (1984); eingegangen am 2. März 1984 
  Published    1984 
  Keywords    Nickel(O), Isocyanates, Aldehydes, Imines, Reductive Elimination Process 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-1032.pdf 
 Identifier    ZNB-1984-39b-1032 
 Volume    39 
2Author    KlausR. Pörschke, RichardM. Ynott, Carl Krüger, M. J. Rom, Herrn ProfRequires cookie*
 Title    Tris(phosphan)-Nickel(0)-Ethen  
 Abstract    Komplexe (dmpe)(PR3)Ni(C2H4). Molekülstruktur des (dmpe)(P0 3)Ni(C2H4) Tris(phosphane)-nickel(0)-ethene Complexes (dm pe)(PR 3)Ni(C2FI4). M olecular Structure of (d m p e)(P 0 3)Ni(C2F[4) Synthesis and properties of tris(phosphane)(ethene)nickel(0) complexes (dmpe)(PR3)Ni(C2H 4) (R = CH3 (4), c-C6H u (5), and C6H5 (6)) are reported. In solution. 4—6 are thermolabile and undergo ligand exchange reactions affording tetrakis(phosphane)nickel(0) and bis(phosphane)-(ethene)nickel(O) complexes. 1H , 13C, and 31P NMR data of 4 —6 confirm the tetrahedral geo­ metry around nickel. For 6 , the crystal and molecular structure has been determined by X-ray crystallography. 
  Reference    Z. Naturforsch. 39b, 1076—1081 (1984); eingegangen am 1. März 1984 
  Published    1984 
  Keywords    Ethene, Nickel(O), Phosphanes, NMR Characterization, X-Ray 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-1076.pdf 
 Identifier    ZNB-1984-39b-1076 
 Volume    39