4-(hydrazinocarbonyl)-N-methylbenzenesulfonamide → 4-({2-[[5-(4-t-butylphenyl)-4-hydroxy-1-methyl-1H-pyrazol-3-yl](phenyl)methylene]hydrazino}carbonyl)-N-methylbenzenesulfonamide

Participants

Reaction Conditions

Reaction Steps

[5-(4-t-Butylphenyl)-4-hydroxy-1-methyl-1H-pyrazol-3-yl](phenyl)methanone (0.254 mmol, 85 mg), 4-(hydrazinocarbonyl)-N-methylbenzenesulfonamide (0.254 mmol, 58 mg) and p-tosylic acid monohydrate (30 mol %, 13 mg) were dissolved in isopropyl alcohol (8.5 mL) and stirred at 100° C. for 19 hours. Then, the solvent was evaporated, and the residue was purified by silica gel thin layer chromatography (chloroform/methanol=10/1) to give the desired product as a yellow solid (30.3 mg, yield 22%).

Provenance & Evidence