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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1374768Generated: October 31, 2026

Hydrochloric Acid → 7-Iodo-6-methyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid

https://huagongshe.com/reaction/1374768

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant7-Iodo-6-methyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl esterHCID 69471668—
SolventSodium HydroxideHCID 14798—
Product7-Iodo-6-methyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acidHCID 2205448899%

Reaction Steps

A suspension of 7-iodo-6-methyl-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl ester (8.30 g, 23.2 mmol) in 2 M aq. sodium hydroxide solution (80 mL) was heated at reflux for 2 h. After cooling the solution obtained was acidified with 25% aq. hydrochloric acid solution. The precipitate was collected by filtration and dried to afford the title compound (7.56 g, 99%). White solid, ISN-MS: m/e=327.9 ([M−H]−).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07166589B2
Source datasetuspto-grants-2007_01
ORD IDord-5d4b6ff8009144f6947526a580f0ec16
Source noteuspto-grants-2007_01