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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47394Generated: October 25, 2026

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

https://huagongshe.com/reaction/47394

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant3,5-DichloroanilineHCID 12281—
ReactantSodium HydroxideHCID 14798—
Reactant4-BromostyreneHCID 16263—
Reactant2-KetobutyrateHCID 3593277—
SolventEthanolHCID 702—
SolventAcetonitrileHCID 6342—
Product4-(4-bromophenyl)-5,7-dichloro-1,2,3,4-tetrahydroquinoline-2-carboxylic AcidHCID 10201025—

Reaction Steps

Compound 40 was prepared by the basic process from 5.0 mmol 3,5-dichloroaniline, 5.5 mmol ethylglyoxalate solution (50% toluene), 15.0 mmol 4-bromostyrene 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-638a400385b2400ca3182ab90c300c27
Source noteuspto-grants-2004_03