Microwave Assisted Synthesis of Some Substituted 1,3-diaryl Propenones and 3,5-diaryl-6-carbethoxy Cyclohexenones and their antibacterial activity

2013 ◽  
Vol 29 (2) ◽  
pp. 501-505 ◽  
Author(s):  
HARISH BABOO ◽  
SAHDEV SAHDEV
Keyword(s):  
Antibacterial Activity ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

Microwave assisted synthesis of novel Pyrazole derivatives and their biological evaluation as anti-bacterial agents

2020 ◽  
Vol 23 ◽  
Author(s):  
Hadis Khodadad ◽  
Farhad Hatamjafari ◽  
Khalil Pourshamsian ◽  
Babak Sadeghi
Keyword(s):  
Antibacterial Activity ◽  
Aromatic Aldehydes ◽  
Catalytic Amount ◽  
Antibacterial Activities ◽  
Structural Features ◽  
Biological Evaluation ◽  
Aureus Strain ◽  
Microwave Assisted Synthesis ◽  
Pyrazole Derivatives ◽  
Microwave Assisted

Aim and Objective: Microwave-assisted condensation of acetophenone 1 and aromatic aldehydes 2 gave chalcone analogs 3, which were cyclized to pyrazole derivatives 6a-f via the reaction with hydrazine hydrate and oxalic acid in the presence of the catalytic amount of acetic acid in ethanol. Materials and Methods: The structural features of the synthesized compounds were characterized by melting point, FT-IR, 1H, 13C NMR and elemental analysis. Results: The antibacterial activities of the synthesized pyrazoles was evaluated against three gram-positive bacteria such as Enterococcus durans, Staphylococcus aureus, Bacillus subtilis and two gram-negative bacteria such as Escherichia coli and Salmonella typhimurium. Conclusion: All the synthesized pyrazoles showed relatively high antibacterial activity against S. aureus strain and none of them demonstrated antibacterial activity against E. coli.

Microwave assisted synthesis of gold nanoparticles and their antibacterial activity against Escherichia coli (E. coli)

2011 ◽  
Vol 11 (1) ◽  
pp. S360-S363 ◽  
Author(s):  
Nishat Arshi ◽  
Faheem Ahmed ◽  
Shalendra Kumar ◽  
M.S. Anwar ◽  
Junqing Lu ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Gold Nanoparticles ◽  
Antibacterial Activity ◽  
Microwave Assisted Synthesis ◽  
E Coli ◽  
Microwave Assisted
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