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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 880494Generated: October 30, 2026

Triethylamine → HCID 66878476, compound

https://huagongshe.com/reaction/880494

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1-(3-Chloro-4-nitro-phenyl)-4-(4,6-dimethyl-pyridin-2-yl)-piperazineHCID 66851330—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 66878476HCID 6687847664.2%

Reaction Steps

Stannous chloride dihydrate (2.6 g, 11.5 mmol) was added to a solution of 1-(3-chloro-4-nitro-phenyl)-4-(4,6-dimethyl-pyridin-2-yl)-piperazine (800 mg, 2.31 mmol) in a mixture of ethyl acetate (20 mL) and ethanol (5 mL). The reaction mixture was heated at reflux for 2 h, allowed to cool to ambient temperature and basified with triethylamine. The reaction mixture was filtered and the filtrate was concentrated in vacuo. The residue was purified by column chromatography over neutral alumina with 10% ethyl acetate in petroleum ether as eluent to afford 2-chloro-4-[4-(4,6-dimethyl-2-pyridyl)piperazin-1-yl]aniline (470 mg, 64%) as a viscous light brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08993574B2
Source datasetuspto-grants-2015_03
ORD IDord-c9dd6751cfb64cb5bbd0df92fd379eaa
Source noteuspto-grants-2015_03