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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1519903Generated: November 3, 2026

Hydrochloric Acid → 2-(2-oxo-3,4-dihydro-1,6-naphthyridin-1(2H)-yl)acetic acid

https://huagongshe.com/reaction/1519903

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactantmethyl 2-(2-oxo-3,4-dihydro-1,6-naphthyridin-1(2H)-yl)acetateHCID 68782506—
SolventAcetic AcidHCID 176—
Product2-(2-oxo-3,4-dihydro-1,6-naphthyridin-1(2H)-yl)acetic acidHCID 68786843—

Reaction Conditions

Temperature60 °C

Reaction Steps

Aqueous 1N HCl (2 mL) was added to a solution of methyl 2-(2-oxo-3,4-dihydro-1,6-naphthyridin-1(2H)-yl)acetate (1.24 g, 5.67 mmol) in acetic acid (5 mL) and the resulting mixture was heated to 60° C. for 4 h. The solution was concentrated under vacuum to give 2-(2-Oxo-3,4-dihydro-1,6-naphthyridin-1(2H)-yl)acetic acid. Retention time (min)=0.275, method [1], MS(ESI) 207.0 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073891B2
Source datasetuspto-grants-2015_07
ORD IDord-03239bf592de43ac8f998c88cc38d75f
Source noteuspto-grants-2015_07