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'Radical Reactions' in keywords Facet   section ZfN Section B  [X]
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1Author    Henryk Zegota++, Clemens Von SonntagRequires cookie*
 Title    Radical-Induced Dephosphorylation of Fructose Phosphates in Aqueous Solution +  
 Abstract    Oxygen free N20-saturated aqueous solutions of D-fructose-1-phosphate and D-fructose-6-phosphate were y-irradiated. Inorganic phosphate and phosphate free sugars (containing four to six carbon atoms) were identified and their G-values measured. D-Fructose-1-phosphate yields (G-values in parentheses) inorganic phosphate (1.6), hexos-2-ulose (0.12), 6-deoxy-2,5-hexodiulose (0.16), tetrulose (0.05) and 3-deoxytetrulose (0.15). D-Fructose-6-phosphate yields inorganic phosphate (1.7), hexos-5-ulose (0.1), 6-deoxy-2,5-hexodiulose (0.36), 3-deoxy-2,5-hexodiulose and 2-deoxyhexos-5-ulose (together 0.18). On treatment with alkaline phosphatase further deoxy sugars were re-cognized and in fructose-1-phosphate G(6-deoxy-2,5-hexodiulose) was increased to a G-value of 0.4. Dephosphorylation is considered to occur mainly after OH attack at C-5 and C-l in fructose-1-phosphate and at C-5 and C-6 in fructose-6-phosphate. Reaction mechanisms are discussed. 
  Reference    Z. Naturforsch. 36b, 1331—1337 (1981); received May 29 1981 
  Published    1981 
  Keywords    D-Fructo8e-l-phosphate, D-Fructose-6-phosphate, y-Irradiation, Radical Reactions, Mass Spectrometry 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-1331.pdf 
 Identifier    ZNB-1981-36b-1331 
 Volume    36