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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1051259Generated: October 26, 2026

1-Ethyl-4-(4-nitro-2-(trifluoromethyl)benzyl)piperazine → 4-((4-Ethylpiperazin-1-yl)methyl)-3-(trifluoromethyl)aniline

https://huagongshe.com/reaction/1051259

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-4-(4-nitro-2-(trifluoromethyl)benzyl)piperazineHCID 57685263—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product4-((4-Ethylpiperazin-1-yl)methyl)-3-(trifluoromethyl)anilineHCID 5913456499%

Reaction Steps

1-Ethyl-4-(4-nitro-2-(trifluoromethyl)benzyl)piperazine (21.7 g, 68.3 mmol) obtained in Step (2) above was stirred in a solution of methanol. The reaction solution was mixed with Pd/C (1.8 g, 17.08 mmol), followed by stirring under hydrogen conditions for about 12 hours at room temperature. The reaction mixture was filtered through a Celite pad under reduced pressure, and washed with methanol. The filtrate was concentrated under reduced pressure to obtain the title compound (19.4 g, 99%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09388165B2
Source datasetuspto-grants-2016_07
ORD IDord-80192e7c7c6a4793bd9c29ab92766e25
Source noteuspto-grants-2016_07