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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 270582Generated: October 31, 2026

Piperazine → 1-[6-(Trifluoromethyl)pyridin-2-yl]piperazine

https://huagongshe.com/reaction/270582

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantTriethylamineHCID 8471—
Reactant2-Chloro-6-(trifluoromethyl)pyridineHCID 602334—
SolventDimethylformamideHCID 6228—
Product1-[6-(Trifluoromethyl)pyridin-2-yl]piperazineHCID 1142474082.6%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of 2-chloro-6-(trifluoromethyl)pyridine (1.0 g, 5.5 mmol), piperazine (1.4 g, 16.0 mmol), and triethylamine (1.5 mL, 11.0 mmol) were mixed in DMF (10 mL) in a dealed tube. The mixture was heated at 100° C. overnight. The reaction mixture was concentrated and chromatographed on silica gel (ethyl acetate to EA/MeOH/Et3N=9:1:0.5) to give 1.05 g of the desired product. MS calculated for C10H12F3N3: (M+H) 232.1; found 232.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07449467B2
Source datasetuspto-grants-2008_11
ORD IDord-019e2bcf7d3c4da8a7354b28da12f137
Source noteuspto-grants-2008_11