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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1250722Generated: October 30, 2026

Ethyl Acetate → HCID 21891959, compound

https://huagongshe.com/reaction/1250722

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1-MethylpiperazineHCID 53167—
ReactantEthyl 2,7-dichloro-4-(chloromethyl)-6-methoxy-3-quinolinecarboxylateHCID 21891992—
SolventWaterHCID 962—
ProductHCID 21891959HCID 2189195981.2%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of ethyl 2,7-dichloro-4-(chloromethyl)-6-methoxy-3-quinolinecarboxylate (6.9 g, 20 mmol) and N-methylpiperazine (9 ml, 80 mmol) is heated to 60° C. for 30 min. The reaction mass is diluted with water and extraction is carried out with ethyl acetate. After decanting, the organic phase is washed with water, followed by drying over magnesium sulphate, filtering and evaporating under reduced pressure. The residue is taken up in water, agitated for 15 minutes, filtered, washed with water and dried under vacuum. The residue is purified by column chromatography (SiO2, MeOH/CH2Cl2: 5/95 to 8/92). 6.7 g of product, a beige solid, is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06339091B1
Source datasetuspto-grants-2002_01
ORD IDord-de7938136717482ba9529de725052b4a
Source noteuspto-grants-2002_01