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'Tautomerism' in keywords Facet   Publication Year 1978  [X]
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1978[X]
1Author    Latif Rateb, B. Azmy, M. A. Nashed, M. F. IskanderRequires cookie*
 Title      
 Abstract    A series of benzoylacetaldehyde benzoylhydrazones were prepared and characterised. Their UV, IR, and iH NMR spectra suggest the enol-imine structure rather than the keto-imine form of analogous Schiff bases. The pKa values of these aroylhydrazones were also measured and correlated with the Hammet substitution constants. Attempted cyclizations of these open-chain aroylhydrazones afforded the corresponding 5-hydroxy-2-pyrazoline compounds rather than the expected pyrazoles. 
  Reference    Z. Naturforsch. 33b, 1527—1534 (1978); received July 24 1978 
  Published    1978 
  Keywords    Benzoylacetaldehyde Benzoylhydrazone, 5-Hydroxy-2-pyrazolines, UV, Tautomerism, Enol-imines 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-1527.pdf 
 Identifier    ZNB-1978-33b-1527 
 Volume    33