Synthesis, spectral characterization and antimicrobial studies of novel series of allylidene based multifaceted chalcones analogues

Following the Claisen Schmidt condensation a series of chalcone, their allylidene derivatives and metallic complexes were produced and subsequently screened for antibacterial assay. The precursors were simple acetophenone and different substituted aryl benzaldehydes; which were made to react in basic ethanolic conditions. The structure of synthesized targets was established by IR, 1H-NMR and EIMS data. The antibacterial statistics showed that most of the bacterial strains particularly S. typhi and E. coli were potently inhibited by majority of the compounds like 3c, 5c, 7a & 7c. This structure activity relationship studies showed that these molecules possessed p-methoxy substituents in their framework and found active in rupturing the cell wall. These molecules might serve as potential drug candidates for future drug discovery and design. The presented manuscript highlights the pharmacological diversity of chalcones holding allylidene moiety and Zn+2 complexes.