Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 248504Generated: October 25, 2026

Hydrochloric Acid → 7-Chloro-6-fluoro-1-(4-fluorophenyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid

https://huagongshe.com/reaction/248504

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
Reactant7-Chloro-6-fluoro-1-(4-fluorophenyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid, ethyl esterHCID 13606904—
SolventEthanolHCID 702—
Product7-Chloro-6-fluoro-1-(4-fluorophenyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acidHCID 5733894.8%

Reaction Steps

A mixture of 320 mg of the above ester, 5 ml of 1N sodium hydroxide, 5 ml of water and 5 ml of ethanol was heated for 30 minutes, then cooled and adjusted to pH 7 with dilute hydrochloric acid. The solid was collected, giving 280 mg of 7-chloro-6-fluoro-1-(4-fluorophenyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05210193
Source datasetuspto-grants-1993_05
ORD IDord-065be0e4b2e0425283474b50a6c3738b
Source noteuspto-grants-1993_05