(3-Nitro-5-(trifluoromethyl)phenyl)-(4-methylpiperazin-1-yl)methanone → (3-Amino-5-(trifluoromethyl)phenyl)(4-methylpiperazin-1-yl)methanone

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Reaction Steps

In 50 mL of methanol, 6.77 g (21 mmol) of (3-nitro-5-(trifluoromethyl)phenyl)-(4-methylpiperazin-1-yl)methanone was dissolved, and 400 mg of 10% palladium carbon was added thereto and the mixture solution was stirred in an hydrogen atmosphere under normal pressures at room temperature for three hours. The catalyst was removed by filtration and the filtrate was concentrated under reduced pressure and the residue was recrystallized from hexane and diethyl ether to obtain 6.14 g (quantitative) of a target product as a white solid.

Provenance & Evidence