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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1519554Generated: October 31, 2026

4-Nitrophenethyl bromide → 1,4-Bis[2-(4-nitrophenyl)ethyl]piperazine

https://huagongshe.com/reaction/1519554

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Nitrophenethyl bromideHCID 79266—
Reactant1-[2-(4-Nitrophenyl)ethyl]piperazine hydrochlorideHCID 66644006—
SolventDimethylformamideHCID 6228—
Product1,4-Bis[2-(4-nitrophenyl)ethyl]piperazineHCID 52337837—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 1-[2-(4-nitrophenyl)ethyl]piperazine hydrochloride (30 mg, 0.11 mmol) in DMF (2 mL) was added 1-(2-bromoethyl)-4-nitrobenzene (31 mg, 1.3 mmol) and TEA (46 uL, 0.33 mmol). The mixture was heated to 80° C. for 16 hours. LC showed some desired product at that point. The desired 1,4-bis[2-(4-nitrophenyl)ethyl]piperazine was purified by mass-directed HPLC. LC-MS (IE, m/z): 385 [M+1]+. (0.052 μM)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073882B2
Source datasetuspto-grants-2015_07
ORD IDord-8a79e3ec105c4f4388ce75a52946219b
Source noteuspto-grants-2015_07