5-Oxo-imidazoline derivatives exhibited good therapeutic activity, with a view of getting to synthesis 2-{[(4’-arylidine-5’oxo-2’phenyl) imidazolyl]-1’-yl}-3-keto-1,5-dimethyl-2-phenyl pyrazole (1a–1n) have been synthesized, all the synthesized compounds were characterized by TLC, IR, 1H NMR, Mass spectral data. All the synthesized compounds (1a–1n) were screened for their antimicrobial activity at 40 μg concentration
