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'Methylation Demethylation' in keywords Facet   Publication Year 1980  [X]
Facet   section ZfN Section B:Volume 035  [X]
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1Author    Hans-Ludwig Krauss, Erich HumsRequires cookie*
 Title    Oberflächenverbindungen yon Übergangsmetallen, XXIII [1] Die Umsetzung cyclischer Olefine mit Oberflächen-Chrom(II) auf Silicagel bei höherer Temperatur Surface Compounds of Transition Metals, XXIII [1] The Reaction of Cycloolefines with Surface Chromium (II) on Silicagel at Higher Temperature  
 Abstract    By reaction with surface chromium(II) on silicagel at T > 150 °C, cycloolefins can undergo ring contraction, methylation/demethylation, hydrogenation/dehydrogenation, and iso-meri7ation. Furthermore, n-alkanes (Ci... C4) are formed incorporating support hydrogen. -As in the case of the corresponding acyclic olefins, a common intermediate MC3 (metalla-cyclobutane^HM-allyl complex) for all these reactions is postulated; the transfer of Ci units is claimed to proceed via a carbene M = CH2 derived from the MC3 precursor. 
  Reference    Z. Naturforsch. 35b, 848—854 (1980); eingegangen am 21. Februar 1980 
  Published    1980 
  Keywords    Surface Compounds, Ring Contraction, Methylation/Demethylation, Hydrogenation/Dehydrogenation, Carbene Intermediates 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0848.pdf 
 Identifier    ZNB-1980-35b-0848 
 Volume    35