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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 868451Generated: October 30, 2026

1-(2-Hydroxyethyl)piperazine → HCID 53781093, compound

https://huagongshe.com/reaction/868451

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Hydroxyethyl)piperazineHCID 7677—
ReactantPotassium CarbonateHCID 11430—
Reactant4-FluorobenzaldehydeHCID 68023—
CatalystTrioctylmethylammonium chlorideHCID 21218—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 53781093HCID 53781093—

Reaction Conditions

Temperature95 °C

Reaction Steps

A two liter three necked flask fitted with a mechanical stirrer, thermometer and condenser is charged with 304 g of 2-hydroxyethylpiperazine, 74.4 g of 4-fluorobenzaldehyde, 1 ml of Aliquat 336, 750 ml of dimethylsulfoxide, and 82.8 g of anhydrous potassium carbonate. The mixture is heated at 95° C. for three days. The reaction mixture then is cooled and poured into 3 liters of ice water. The resultant solid precipitate is filtered, washed with water, and vacuum dried. The crude solid is recrystallized from toluene: m.p. 105°-107° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04779961
Source datasetuspto-grants-1988_10
ORD IDord-21152e3e2ce647dba3617dce4a7f5bc4
Source noteuspto-grants-1988_10