Department of Chemistry, Mohanlal Sukhadia University, Udaipur-313 001, Rajasthan, India Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India E-mail : drycj_16@yahoo.com Manuscript received 25 January 2014, accepted 10 February 2014 Reaction of substituted pyrazole-1-acetyl chloride (3) with acetophenone derivative (4) in presence of sodium methoxide in dry toluene led to the synthesis of substituted β-diketones containing pyrazole moiety (5a-l). All the newly

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... esized compounds were confirmed by elemental analysis and IR, 1H, 13C NMR and mass spectral studies. The compounds (5a-l) were evaluated for their antibacterial and antifungal activities.