4-Iminobarbiturates: Tautomerism and electrochemical behavior in relation to N (3) substitution.

…, O LAFONT, M GUERNET, M MIOCQUE

Index: Giraud; Gueutin; Lafont; Guernet; Miocque Chemical and Pharmaceutical Bulletin, 1988 , vol. 36, # 2 p. 563 - 570

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Citation Number: 6

Abstract

Tautomerism of 4-iminobarbiturates depends upon the presence of a substituent on the N (3) atom. The ultraviolet, infrared, proton nuclear magnetic resonance, 13 C-nuclear magnetic resonance and mass spectrum data show that 3-alkylated compounds present an imido system while 3-unalkylated ones are characterized by an amidinoketone system. The electrochemical bahavior of these two groups was studied by polarography, cyclic ...