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'Iminium Salt' in keywords Facet   Publication Year 1998  [X]
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1Author    H. Möhrle, J. MehrensRequires cookie*
 Title    Reaktivität nitrophenylsubstituierter cyclischer Amine bei Dehydrierungen The Reactivity of Nitrophenyl Substituted Cyclic Amines with Dehydrogenations  
 Abstract    Piperidine and perhydroazepine bearing a 1 -(4-nitrophenyl) substituent were inert to mercury-edta, while the a-pipecoline derivative gave an aminoketone with cleavage of the heterocycle. However the corresponding (2-nitrophenyl) compounds reacted to give respectively a piperidin-2-one, an aminopentanal and an aminohexanone. By an additional substituent in 2'-position the p-nitro compounds underwent dehydrogenation too. With a methyl group resulted a pattern analogous to o-nitro products. A neighbouring hydroxymethyl function enhanced the reaction with formation of benzoxazines and if possible their further oxidized derivatives, the hydroxylactams. 
  Reference    (Z. Naturforsch. 53b, 37 [1998]; eingegangen am 8. Oktober 1997) 
  Published    1998 
  Keywords    Lactam, Iminium Salt, Aminoketone, N, 0-Acetal, Neighbour Group 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0037.pdf 
 Identifier    ZNB-1998-53b-0037 
 Volume    53