Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1066980Generated: October 30, 2026

1-Bromo-2-nitrobenzene → HCID 7060196, compound

https://huagongshe.com/reaction/1066980

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-nitrobenzeneHCID 11341—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Methylpiperazine, (S)-HCID 2734219—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 7060196HCID 7060196479.1%

Reaction Steps

To a solution of 2-bromo-1-nitrobenzene (0.6 g, 3.0 mmol) in 1,4-dioxane (15 mL) was added (S)-(+)-2-methylpiperazine (0.5 g, 0.5 mmol) and powdered K2CO3 (15.0 mmol, 1.5 g) and the resulting suspension was heated at reflux for 10 h. After the suspension was cooled, it was filtered through a sintered glass funnel and the solvent was evaporated in vacuo. The resulting residue was purified by column chromatography on silica gel (1:1 hexane/EtOAc followed by 4:1 EtOAc/MeOH) to yield (S)-(+)-3-methyl-1-(2-nitrophenyl)-piperazine as an orange oil (0.53 g, 80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06245773B1
Source datasetuspto-grants-2001_06
ORD IDord-188d72da64994372bf74fb08428e9c0f
Source noteuspto-grants-2001_06