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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 630070Generated: October 31, 2026

Potassium Carbonate → 2-Chloro-4-(4-ethylpiperazino)benzaldehyde

https://huagongshe.com/reaction/630070

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-EthylpiperazineHCID 79196—
Reactant2-Chloro-4-fluorobenzaldehydeHCID 145024—
SolventDimethylformamideHCID 6228—
Product2-Chloro-4-(4-ethylpiperazino)benzaldehydeHCID 59589476—

Reaction Conditions

Temperature100 °C

Reaction Steps

In a 250 mL round bottom flask, 2-chloro-4-fluorobenzaldehyde (3.15 g, 20 mmol), 1-ethylpiperazine (2.8 mL, 22 mmol), and potassium carbonate (2.76 g, 20 mmol) were dissolved in anhydrous DMF (20 mL). The mixture was heated at 100° C. for 4 hours. DMF was evaporated under vacuum. The crude product was partitioned between water (100 mL) and DCM (150 mL). The organic phase was separated, washed with water, dried over Na2SO4, and evaporated to provide nearly pure 2-chloro-4-(4-ethylpiperazin-1-yl)benzaldehyde.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315521B2
Source datasetuspto-grants-2016_04
ORD IDord-dbe4e4dc4bec4cee978d8dd60da6191a
Source noteuspto-grants-2016_04