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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 426985Generated: October 29, 2026

Ammonia → HCID 20544454, compound

https://huagongshe.com/reaction/426985

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHCID 20544481HCID 20544481—
ProductHCID 20544454HCID 20544454—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of ethyl 2-(4-oxo-6-hydroxymethyl-4H-pyran-3-yloxy)acetate monohydrate (10 g) in conc. ammonia was heated at 120° C. for 10 hours in a sealed vessel and the reaction mixture was concentrated. To the residue was added water and the resultant solution was adjusted to pH 1 to 2 with 10% hydrochloric acid. The resultant precipitates were washed with water and dried to give crystals (6 g) of 2-(4-oxo-6-hydroxymethyl-1,4-dihydropyridin-3-yloxy)acetic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04172198
Source datasetuspto-grants-1979_10
ORD IDord-df5eb099dd8f4019aae607684896a95f
Source noteuspto-grants-1979_10