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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1854701Generated: October 30, 2026

1-(2-Hydroxyethyl)piperazine → HCID 43592166, compound

https://huagongshe.com/reaction/1854701

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Hydroxyethyl)piperazineHCID 7677—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Bromo-2-fluorobenzaldehydeHCID 143517—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 43592166HCID 4359216649%

Reaction Conditions

Temperature110 °C

Reaction Steps

To a suspension of 4-bromo-2-fluorobenzaldehyde (281 μL, 2.37 mmol) and potassium carbonate (328 mg, 2.37 mmol) in 5 mL of dry N,N-dimethylformamide was added 4-(2-hydroxyethyl)piperazine (463 mg, 3.56 mmol) at room temperature. After being stirred at 110° C. for 12 h, the reaction mixture was diluted with ethyl acetate. The solution was washed with water, saturated NaHCO3 aqueous solution, brine, and dried over MgSO4. After filtration, the filtrate was concentrated in vacuo, and the residue was purified by silica gel column chromatography (chloroform/methanol=98/2 to 90/10) to obtain the title compound as a pale yellow powder (364 mg, 49%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08962674B2
Source datasetuspto-grants-2015_02
ORD IDord-fcb880fc26c340148925f0ad58e6e136
Source noteuspto-grants-2015_02