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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 880485Generated: October 31, 2026

Benzyl Bromide → 1-Benzyl-4-(4-nitrophenyl)piperazine

https://huagongshe.com/reaction/880485

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantTriethylamineHCID 8471—
Reactant1-(4-Nitrophenyl)piperazineHCID 80447—
SolventAcetonitrileHCID 6342—
Product1-Benzyl-4-(4-nitrophenyl)piperazineHCID 274742777%

Reaction Steps

Benzyl bromide (1.42 mL, 11.6 mmol) was added to a solution of 1-(4-nitrophenyl)piperazine (2.0 g, 11.6 mmol) in acetonitrile (30 mL) with triethylamine (2.68 mL, 19.32 mmol) and refluxed for 12 h. The mixture was concentrated in vacuo and the residue partitioned between water and ethyl acetate. The organic layer was separated, washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo to afford 1-benzyl-4-(4-nitrophenyl)piperazine (2.2 g, 77%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08993574B2
Source datasetuspto-grants-2015_03
ORD IDord-fec3168eb7ac417c8b8b5a593c24001b
Source noteuspto-grants-2015_03