8-Hydroxy-1-naphthoyl compounds
Abstract
The lactone of 8-hydroxy-1-naphthoic acid reacts with nucleophilic reagents to give a variety of 8-hydroxy-1-naphthoyl compounds. In these an intramolecular hydrogen bond unites the hydroxy- and carbonyl functions and strongly affects ultraviolet and visible spectra, but only in non-basic solvents. The reactions of these compounds in strong acid, and their mass spectra, are also dependent on peri-ring closures.