Synthesis and Evaluation of Antibacterial Properties of Chalcones Derived from Thiophene-2-Carbaldehyde
Chaithra R. Shetty *
Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte Deemed to be University, Deralakatte, Mangaluru, Karnataka, India.
L. Dikshith
Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte Deemed to be University, Deralakatte, Mangaluru, Karnataka, India.
Fathima Sible Dsouza
Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte Deemed to be University, Deralakatte, Mangaluru, Karnataka, India.
Fathimath Shahana
Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte Deemed to be University, Deralakatte, Mangaluru, Karnataka, India.
Fatima Nooha
Department of Pharmaceutical Chemistry, NGSM Institute of Pharmaceutical Sciences, Nitte Deemed to be University, Deralakatte, Mangaluru, Karnataka, India.
*Author to whom correspondence should be addressed.
Abstract
Chalcone is a simple chemical structure which is present in most of the naturally occurring substances. Many chalcone derivatives are synthesized by Claisen-Schmidt condensation reaction. It is a subject of great research opportunity due to numerous biological activities and convenient synthesis of chalcones. This study aims on synthesizing different α, β unsaturated ketones (chalcones) containing thiophene from thiophene-2-carbaxldehyde and different substituted acetophenones, further evaluating antibacterial activity of synthesized compounds. The synthesized compounds are characterized for their spectral study. From the antibacterial study it was observed that the compounds bearing electron withdrawing group, electron releasing group exhibited excellent to moderate antibacterial activity respectively. These results showed that chalcones incorporated with thiophene have better scopes for further development of the antimicrobial agents.
Keywords: Chalcones, thiophene, claisen-schmidt condensation, E.coli, antibacterial