Insect antifeedant potent 6-substituted ω-bromo-2-naphthones

A series of some 6-substituted ω-bromo-2-naphthyl ketones have been synthesized by a greener synthetic method using fly-ash: water catalyzed aqueous phase reaction. The purities of these ketones and esters checked by their physical constants and spectral data have been published earlier in the literature. The insect antifeedant activities of these ketones have been studied using 4th instar larvae Achoea janata L and castor semilooper.