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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1656439Generated: October 29, 2026

Hydrochloric Acid → 4-(2-Chlorophenyl)-6,8-dimethyl-3-quinolinecarboxylic acid

https://huagongshe.com/reaction/1656439

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
ReactantPotassium HydroxideHCID 14797—
ReactantMethyl 4-(2-chlorophenyl)-6,8-dimethyl-3-quinolinecarboxylateHCID 10245799—
SolventWaterHCID 962—
Product4-(2-Chlorophenyl)-6,8-dimethyl-3-quinolinecarboxylic acidHCID 999562496.8%

Reaction Steps

A mixture of methyl 4-(2-chlorophenyl)-6,8-dimehtyl-3-quinolinecarboxylate (0.98 g), potassium hydroxide (0.5 g) and 80% ethanol (10 ml) was refluxed for 15 mins. The mixture was diluted with water and acidified with hydrochloric acid to give 4-(2-chlorophenyl)-6,8-dimethyl-3-quinolinecarboxylic acid as crystals (0.90 g, 96.8%), which was recrystallized from ethanol as colorless prisms. m.p. 234°-235° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05254565
Source datasetuspto-grants-1993_10
ORD IDord-1a36d8c5fb574b358e3ef3e97dc172ce
Source noteuspto-grants-1993_10