10.1155/2011/165047
The research discusses the microwave-assisted synthesis of novel substituted 1,3-diarylpropenones (chalcones) and their antimicrobial activity. The purpose of the study was to develop a more efficient and eco-friendly method for synthesizing these compounds, which are known for their wide range of pharmacological activities, including antibacterial and antifungal properties. The researchers used 4-hydroxy-3,5-dinitroacetophenone and various substituted aromatic aldehydes as starting materials, along with montmorrilonite K10 as a catalyst and solid support under microwave irradiation. The method offered improved yields, faster reaction rates, and milder conditions compared to conventional methods. The synthesized compounds were then screened for their antibacterial activity against Escherichia coli and Staphylococcus aureus, and antifungal activity against Alternaria alternate. The results showed that all compounds exhibited activity against the tested microorganisms, with some showing marked inhibition, particularly compounds 3a, 3c, 3d, 3f, and 3g in antibacterial activity, and compounds 3d and 3g in antifungal activity. The study concluded that the microwave-induced method is an effective approach for the synthesis of these potentially useful antimicrobial agents.