Sr. Salman et Nai. Saleh, CALCULATION OF TAUTOMERIC RATIOS OF SOME SCHIFF-BASES USING C-13 NMR-SPECTROSCOPY, CANADIAN JOURNAL OF ANALYTICAL SCIENCES AND SPECTROSCOPY, 42(1), 1997, pp. 9-13
The carbon-13 NMR chemical shifts of a series of substituted 2-hydroxy
-1-naphthaldehyde compounds, together with those of two model Schiff b
ases, are presented. The data for the two model compounds, salicylidin
e benzylamine and naphthalidine amino quinoline, were used to calculat
e the percentage keto form in substituted 2-hydroxy-1-naphthaldehyde.