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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47381Generated: October 26, 2026

Trifluoroacetic acid → 5,7-dichloro-4-(2-fluorophenyl)-1,2,3,4-tetrahydroquinoline-2-carboxylic Acid

https://huagongshe.com/reaction/47381

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant3,5-DichloroanilineHCID 12281—
ReactantSodium HydroxideHCID 14798—
Reactanto-FluorostyreneHCID 123056—
Reactant2-KetobutyrateHCID 3593277—
SolventEthanolHCID 702—
SolventAcetonitrileHCID 6342—
Product5,7-dichloro-4-(2-fluorophenyl)-1,2,3,4-tetrahydroquinoline-2-carboxylic AcidHCID 9902497—

Reaction Steps

Compound 27 was prepared by the basic process from 5.0 mmol 3,5-dichloroaniline, 5.5 mmol ethylglyoxalate solution (50% toluene), 15.0 mmol 2-fluorostyrene and 5.0 mmol trifluoroacetic acid in 30.0 ml acetonitrile. Subsequent saponification was carried out using 1.0 ml of sodium hydroxide solution (6N water) in 20.0 ml of ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06699877B2
Source datasetuspto-grants-2004_03
ORD IDord-d96c18cd76c54672a020f015a554aa6e
Source noteuspto-grants-2004_03