An efficient and accessible procedure for the synthesis of substituted pyrazoles was described. The method involves cyclocondensation reaction of chalcones with 2,4-dimethylphenylhydrazine hydrochloride in the presence of catalytic amount of hydrochloric acid to obtain pyrazole derivatives in good yields. The synthesized new compounds were characterized by spectral studies and elemental analysis; and evaluated in vitro for their antimicrobial susceptibilities.
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