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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47374Generated: October 25, 2026

Trifluoroacetic acid → 5,7-Dichloro-4-p-tolyl-1,2,3,4-tetrahydroquinoline-2-carboxylic acid

https://huagongshe.com/reaction/47374

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-Ethenyl-4-methylbenzeneHCID 12161—
Reactant3,5-DichloroanilineHCID 12281—
ReactantSodium HydroxideHCID 14798—
Reactant2-KetobutyrateHCID 3593277—
SolventEthanolHCID 702—
SolventAcetonitrileHCID 6342—
Product5,7-Dichloro-4-p-tolyl-1,2,3,4-tetrahydroquinoline-2-carboxylic acidHCID 9902295—

Reaction Steps

Compound 20 was prepared by the basic process from 5.0 mmol 3,5-dichloroaniline, 5.5 mmol ethylglyoxalate solution (50% toluene), 15.0 mmol 4-methylstyrene 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-a143d2b5e5ac4c2996929dc839306c84
Source noteuspto-grants-2004_03