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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1005742Generated: November 1, 2026

Ammonia → HCID 178514037, compound

https://huagongshe.com/reaction/1005742

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHydrochloric AcidHCID 313—
ReactantHCID 178501652HCID 178501652—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 178514037HCID 178514037—

Reaction Steps

In 4 mL of methanol is suspended 0.19 g of methyl 2-{[(3-hydroxy-2-pyrazinyl)carbonyl]-amino}acetate. The suspension is saturated with ammonia by introducing gaseous ammonia thereinto under ice-cooling for 30 minutes. The resulting mixture is stirred at the same temperature as above for 1 hour and then at ambient temperature for 15 hours. The solvent is distilled off under reduced pressure. The residue thus obtained is dissolved in a mixture of 4 mL of water and 1 mL of methanol. To the resulting solution is added 0.9 mL of 1 mol/L hydrochloric acid. The deposited crystals are collected by filtration to obtain 0.16 g of N2-(2-amino-2-oxoethyl)-3-hydroxy-2-pyrazinecarboxamide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06787544B2
Source datasetuspto-grants-2004_09
ORD IDord-58da148914374ae9b08ab7e0fc12e416
Source noteuspto-grants-2004_09