Results: 8 derivatives of 4-benzylidene-3-methyl-1 - (4-nitrophenyl) - 1H-pyrazol-5 (4H) - one were synthesized with the yield of this step ranging 70 - 80%. 8 derivatives of 4-benzyl-3-methyl-1 - (4-nitrophenyl) - 1H-pyrazol-5-ol were synthesized with the yield of this reduction step ranging 80 - 90%.