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'Isoguanosine' in keywords Facet   section ZfN Section C  [X]
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1976 (1)
1Author    Jerzy Sepiol, Zygmunt Kazimierczuk, David ShugarRequires cookie*
 Title    Tautomerism of Isoguanosine and Solvent-Induced Keto-Enol Equilibrium  
 Abstract    Ultraviolet and infrared absorption spectroscopy, in aqueous and non-aqueous media, have been employed to study the tautomerism of 9-substituted isoguanines, including the nucleoside iso­ guanosine. With the aid of a series of model compounds, it was shown that 9-substituted isogua­ nines, and isoguanosine, in aqueous medium are predominantly in the form N (1) H,2-keto-6-amino. In dioxane solution the tautomeric equilibrium is shifted in the direction of the enol form. The shift towards this form is accentuated for those analogues in which the exocyclic amino group is methylated. 
  Reference    (Z. Naturforsch. 31c, 361 [1976]; received May 3 1976) 
  Published    1976 
  Keywords    Isoguanine Analogues, Isoguanosine, Tautomerism, Tautomeric Equilibrium, Solvent Polarity 
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 TEI-XML for    default:Reihe_C/31/ZNC-1976-31c-0361.pdf 
 Identifier    ZNC-1976-31c-0361 
 Volume    31