Synthesis and Characterization of some new heterocyclic derivatives from terphthaldehyde and study of their biological activity

Abstract

In this study, some new heterocyclic compounds have been synthesized including the preparation of some chalcone from the reaction terphthadehyde with two moles of ketone derivative p-hydroxy acetophenone in a basic medium, After that . The stage includes the preparation of new heterocyclic compounds five-membered ( pyrazole, Isoxazole) and six-membered ( oxazine, thiazine). The prepared compounds were characterized by FT-IR,1H-NMR, and 13C-NMR techniqes, in addition to their melting points and TLC (Thin Layer Chromatography).Finally,the prepared compounds are tested against Gram-positive and Gram-negative bacteria to study their biological activity.