HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonia → HCID 178514037, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonia | HCID 222 | — |
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 178501652 | HCID 178501652 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 178514037 | HCID 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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06787544B2 |
| Source dataset | uspto-grants-2004_09 |
| ORD ID | ord-58da148914374ae9b08ab7e0fc12e416 |
| Source note | uspto-grants-2004_09 |