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The syntheses of some novel 2-substituted phenylazo-1,3-indandiones

1990-1
Hocaoǧlu, Nermin
Uyar, Tahsin
The synthesis of various novel 2-substituted phenylazo-1,3-indandiones (which are potential dyestuffs) by the Japp-Kligemann coupling reaction is reported. Ultraviolet-visible absorption spectra of the compounds were examined in various solvents and the compounds in solution exhibited azo-hydrazone tautomerism. The effects of various substituents on these equilibria are discussed.