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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1390976Generated: October 31, 2026

Hydrochloric Acid → HCID 21331806, compound

https://huagongshe.com/reaction/1390976

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-Chloro-7-(trifluoromethyl)quinolineHCID 67668—
ReactantHCID 21331819HCID 21331819—
SolventEthanolHCID 702—
ProductHCID 21331806HCID 2133180692.3%

Reaction Steps

A solution of 4-chloro-7-trifluoromethyl quinoline (1 g, 0.00216 M), 4-(o-tolyl)-1-p-aminobenzylpiperazine (1.3 g, 0.0046 M) and 3 ml of ethanolic hydrogen chloride in 25 ml of ethanol is heated at reflux for 6 hours under nitrogen. The reaction mixture is quenched with ice water, neutralized with aqueous 10% aqueous sodium hydroxide solution and extracted with methylene chloride. The methylene chloride solution is washed with water, dried over anhydrous sodium sulfate and concentrated to a white solid which, after recyrstallization from ethyl acetate/Skellysolve®B, affords 1.9 g (92%) of white crystalline 4-[[4-[[4-(2-methylpenyl)-1-piperazinyl]methyl]phenyl]amino]-7-(trifluoromethyl)quinoline of melting point 208°-210° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04140775
Source datasetuspto-grants-1979_02
ORD IDord-3f7a9e82ec9b4bd58ba959b36cb43285
Source noteuspto-grants-1979_02