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1997[X]
1Author    R. Olf Minkwitz, Jens JakobRequires cookie*
 Title    Uber die Bildung von N,N-Bistrifluormethylhydroxylammoniumsalzen (CF3)2N(X)OX+MF6-(X = H, D; M = As, Sb) On the Formation o f N,N-Bistrifluoromethylhydroxylammonium Salts (CF3)2N(X)O X+MF6-(X = H, D; M = As, Sb)  
 Abstract    The preparation of the N,N-Bistrifluoromethylhydroxylammonium hexafluorometallates (CF3)2N(X)OX+MF6~ (X = H, D; M = As, Sb) is reported. The new compounds were cha­ racterized by IR, Raman, Mass, 'H , ,9F and l3C NM R spectroscopy. In addition we present our approach to the preparation of H-subsituted N,N-Bistrifluoromethylhydroxylammonium hexafluorometallates (C F ^ N (Y)O H +M F6~ (Y = C H 3, Cl, F; M = As, Sb). 
  Reference    Z. Naturforsch. 52b, 958—964 (1997); eingegangen am 12. Mai 1997 
  Published    1997 
  Keywords    N, N-Bistrifluoromethylhydroxylammonium Hexafluoroarsenate, N, N-Bistrifluoromethylhydr-oxylammonium Hexafluoroantimonate, Vibrational Spectra, NMR Spectra, Mass Spectra 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0958.pdf 
 Identifier    ZNB-1997-52b-0958 
 Volume    52 
2Author    H. Möhrle, M. JeandréeRequires cookie*
 Title    ,3-Dioxolane von N-substituierten 4-Piperidonen als Dehydrierungssubstrat 1,3-Dioxolanes of N-Substituted 4-Piperidones as Substrates for Dehydrogenations  
 Abstract    The applicability of ketals was examined for masking the carbonyl group in N-tertiary 4-piperidones during the dehydrogenation using mercury-edta. Various 1,3-dioxolanes showed a different behaviour in dependence on the N-substituent. With simple aliphatic moieties mainly dehydrogenated but hydrolyzed products were received. These enaminones were also available from the dehydrogenations of the corresponding 4-piperidones. Similar applied to para-acyl-aromatic substituted derivatives but with less yields. Aromatic substituents bearing a neighbour group on ortho-position with participation gave rise to different oxidation products partially with preservation of the ketal structure. 
  Reference    (Z. Naturforsch. 52b, 72—78 [1997]; eingegangen am 23. August 1996) 
  Published    1997 
  Keywords    Ketals, Enaminones, N, 0-A cetals, Lactams, Dehydrogenation with Hg-EDTA Complex 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0072.pdf 
 Identifier    ZNB-1997-52b-0072 
 Volume    52