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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 390003Generated: October 30, 2026

Piperazine → 1-(2,4,5-Trimethylphenyl)piperazine

https://huagongshe.com/reaction/390003

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
Reactant1-Bromo-2,4,5-trimethylbenzeneHCID 79610—
ReactantSodium t-butoxideHCID 23676156—
CatalystHCID 178424406HCID 178424406—
Product1-(2,4,5-Trimethylphenyl)piperazineHCID 2760821—

Reaction Steps

A target compound (1.03 g, 5.041 mmol, 40.2%) was yielded in the same manner as Reference Example 10 by reacting 5-bromo-1,2,4-trimethylbenzene (2.5 g, 12.556 mmol) with piperazine (4.32 g, 50.224 mmol), sodium t-butoxide (1.75 g, 18.206 mmol) and dichlorobis(tri-o-tolylphosphine)palladium(II) (295.5 mg, 0.37 mmol) and purifying by separation through column chromatography (CH2Cl2/MeOH, 1:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08383631B2
Source datasetuspto-grants-2013_02
ORD IDord-2e474e3faa344fab9691192b5a8b53f1
Source noteuspto-grants-2013_02