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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1006881Generated: November 1, 2026

Potassium Carbonate → 1-(1-Ethylpiperazin-4-yl)-3-bromoisoquinoline

https://huagongshe.com/reaction/1006881

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-EthylpiperazineHCID 79196—
Reactant1,3-DibromoisoquinolineHCID 640976—
SolventDimethylformamideHCID 6228—
Product1-(1-Ethylpiperazin-4-yl)-3-bromoisoquinolineHCID 2250244773.3%

Reaction Steps

1,3-Dibromoisoquinoline (2.70 g), N-ethylpiperazine (1.16 g) and potassium carbonate (3.50 g) were reacted in DMF (30 ml) at 80° C. for 5 hr. The reaction solution was evaporated, and then partitioned between ethyl acetate and water. The resulting organic layer was washed with water, dried and evaporated. The resulting residue was purified by NH silica gel column chromatography (ethyl acetate/n-hexane system), to give the title compound (2.21 g) as a pale yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06790844B2
Source datasetuspto-grants-2004_09
ORD IDord-e0b09efcce7647b2afdd681244b46399
Source noteuspto-grants-2004_09