
%0 Journal Article
%A Yamamoto, S 
%A Tenno, Y 
%A Nishimura, N 
%T Acidity Dependence of the Tautomeric Equilibrium Between the First Conjugated Acids of 4-Aminoazobenzenes
%J Australian Journal of Chemistry
%D 1979/01/01
%V 32
%N 1
%P 41-47
%K 
%R https://doi.org/10.1071/CH9790041
%U https://www.publish.csiro.au/paper/CH9790041 
%X Acidity functions based upon primary anilines which have no ortho substituents have been established in 20% ethanol-80% aqueous sulfuric acid solutions, and compared with those based upon o-substituted anilines and azobenzenes. It was found that the tautomeric equilibrium between azonium and anilinium forms in 4-aminoazobenzene derivatives invariably shifts to the azonium form with increase in acidity. This observation has been interpreted in terms of acidity functions. 
