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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1270068Generated: October 31, 2026

Acetic Acid → HCID 18448968, compound

https://huagongshe.com/reaction/1270068

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantWaterHCID 962—
ReactantEthylenediamineHCID 3301—
ReactantHCID 3793602HCID 3793602—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 18448968HCID 1844896824.8%

Reaction Conditions

Temperature120 °C

Reaction Steps

To a solution of 1-Benzyl-6-chloro-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid (300 mg) in 1-methyl-2-pyrrolidinone (6 mL) was added ethylenediamine (170 mg) under argon atmosphere. The mixture was heated at 120° C. for 18 h and then at 145° C. for 4 h. The reaction mixture was cooled and poured into water (12 mL). The pH value was adjusted with acetic acid to 7.0–7.5. The reaction mixture was extracted with DCM (5×30 mnL). The organic phase was dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified by silica SPE-column (eluent: from DCM 100% to DCM/MeOH/NH4OH 85/13/2) giving the title compound (80 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07202221B2
Source datasetuspto-grants-2007_04
ORD IDord-11786446c9f24c4e9a6695f7d5b97340
Source noteuspto-grants-2007_04