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1997 (1)
1976 (1)
1Author    Sljdarshan LalRequires cookie*
 Title    Polarographic Study of the Streaming Maximum of Nitrobenzene in Mcllvaine Buffer  
 Abstract    The polarographic maximum of nitrobenzene (first reduction step) is studied at pH 2.2, 5.3 and 7.8. The nature of the maximum is pH dependent and it changes from positive first kind (at pH = 2.2) to negative maximum of the first kind (at pH 5.3, 7.8). At higher flow-rates, compound maxima occur and clear reversal potentials are located where maximum of first kind is transformed into the second kind and vice versa. The morphology of current-time curves has been examined critically in the light of streaming patterns, electrode circuitry, flow-rates and exponents oft at varying intervals during the drop life. 
  Reference    (Z. Naturforsch. 31b, 51—59 [1976]; received July 3 1975) 
  Published    1976 
  Keywords    Polarographic Maximum, Current-time Curves, Nitrobenzene, Streaming 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0051.pdf 
 Identifier    ZNB-1976-31b-0051 
 Volume    31 
2Author    WolfgangK. Läuia, Susanne Schoger2, Martin NiegerbRequires cookie*
 Title    Synthesis and Crystal Structure of Perhydro-l,4-benzoxazino[2,3-n]phenoxazine  
 Abstract    The oxidation of fra«s-2-aminocyclohexanol with nitrobenzene in the presence of catalytic amounts of iron inter alia yields perhydro-l,4-benzoxazino[2,3-n]phenoxazine (1). This com­ pound has been characterized analytically, spectroscopically and by X-ray diffraction. It is postulated that the oxidation of the 2-aminoalcohol leads to the intermediate formation of a 1,2-dione. The direct synthesis of 1 from trans-2-aminocyclohexanol and 1,2-cyclohexandione supports this hypothesis. 
  Reference    Z. Naturforsch. 52b, 801—804 (1997); eingegangen am 14. Oktober 1996 
  Published    1997 
  Keywords    Nitrobenzene, Reduction, Aniline, 2-Aminoalcohols, Catalysis 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0801.pdf 
 Identifier    ZNB-1997-52b-0801 
 Volume    52