Hydrochloric Acid → HCID 72360050, compound

Participants

Reaction Steps

To methyl 4-[(2-{1-[1-benzyl-5-(4-t-butylphenyl)-4-hydroxy-1H-pyrazol-3-yl]ethylidene}hydrazino)carbonyl]benzoate (0.045 mmol, 23.5 mg), methanol was added, and 1 M aqueous sodium hydroxide (0.224 mmol, 0.224 mL) was added at room temperature. After 30 minutes of stirring at room temperature and 1.5 hours of stirring at 60° C., the reactor was cooled to 0° C., and 1 M hydrochloric acid (0.224 mmol, 0.224 mL) and water were added. The precipitated solid was recovered by filtration, washed with water, dried by means of a vacuum pump and purified by silica gel thin layer chromatography (chloroform/methanol=10/1) to give the desired product as a yellow solid (15.8 mg, yield 69%).

Provenance & Evidence