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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1251110Generated: November 5, 2026

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

https://huagongshe.com/reaction/1251110

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 numberUS06340759B1
Source datasetuspto-grants-2002_01
ORD IDord-a9ae697fa6e449cbbec1010bb6280e22
Source noteuspto-grants-2002_01