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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47401Generated: October 26, 2026

Trifluoroacetic acid → 5,7-dichloro-3-methyl-4-(2,4,5-trimethoxyphenyl)-1,2,3,4-tetrahydroquinoline-2-carboxylic Acid Ethyl Ester

https://huagongshe.com/reaction/47401

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant3,5-DichloroanilineHCID 12281—
Reactant2-KetobutyrateHCID 3593277—
ReactantBeta-AsaroneHCID 5281758—
SolventAcetonitrileHCID 6342—
Product5,7-dichloro-3-methyl-4-(2,4,5-trimethoxyphenyl)-1,2,3,4-tetrahydroquinoline-2-carboxylic Acid Ethyl EsterHCID 10182631—

Reaction Steps

Compound 47 was prepared by the basic process from 5.0 mmol 3,5-dichloroaniline, 5.5 mmol ethylglyoxalate solution (50% toluene), 15.0 mmol β-asaron and 5.0 mmol trifluoroacetic acid in 30.0 ml acetonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06699877B2
Source datasetuspto-grants-2004_03
ORD IDord-b3314ddbf4d24b39acf27f68fdb1c33c
Source noteuspto-grants-2004_03