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1Author    Stephan Pitter, EckhardD. Injus, Beate Jung, H. Elm, Ar GörlsRequires cookie*
 Title    Phosphinoalkylnitrile: Synthese und Koordinationsverhalten an Palladiumzentren Phosphinoalkylnitnles: Synthesis and Coordination Behaviour at Palladium C entres  
 Abstract    Phosphinoalkylnitriles R2P-(CH2)"-CN {R = isopropyl ('pr), phenyl (ph), cyclohexyl (' hex), n -3, 6, 10} have been prepared starting from the corresponding secondary phosphines in an easy three step synthesis. All new compounds were characterized by their 'H -, i3C and 31P NMR data. Some of these new P, N ligands were used to prepare complexes [{R2P-(CH2)"-CN}2PdCl2] which were also identified by their NMR data. In addition the crystal structures of three derivatives, [{'pr2P-(CH2)3-CN }2PdCl2] 7a, [{ph2P-(CH2)3-CN }2PdCl2) 7b and [{ph2P-(CH 2)6-CN}2PdCl2] 8b were determined by X-ray analysis. The coordination mode of the phosphinoalkylnitriles in these complexes was found to be P-bonded resulting in a trans configuration. Palladium catalysts with 5a as ligand show high activies in the co-oligomerization of butadiene and carbon dioxide. The ^-lactone 11a is formed under very mild conditions. 
  Reference    Z. Naturforsch. 51b, 934—946 (1996); eingegangen am 11. Juli 1995 
  Published    1996 
  Keywords    Phosphinoalkylnitriles, Phosphine Complexes of Palladium, Crystal Structure, Catalysis, -Lactones 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0934.pdf 
 Identifier    ZNB-1996-51b-0934 
 Volume    51