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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1066981Generated: November 2, 2026

1-Bromo-2-nitrobenzene → HCID 7060194, compound

https://huagongshe.com/reaction/1066981

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Bromo-2-nitrobenzeneHCID 11341—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Methylpiperazine, (R)-HCID 7330434—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 7060194HCID 7060194470%

Reaction Steps

To a solution of 2-bromo-nitrobenzene (0.4 g, 2.0 mmol) in 1,4-dioxane (10 mL) was added (R)-(+)-2-methylpiperazine (0.25 g, 0.25 mmol) and powdered K2CO3 (7.5 mmol, 0.8 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 (R)-(+)-3-methyl-1-(2-nitrophenyl)-piperazine as an orange-red oil (0.26 g, 78%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06245773B1
Source datasetuspto-grants-2001_06
ORD IDord-55775919c6c547e6833c6daf3c07da9f
Source noteuspto-grants-2001_06