HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ammonia → HCID 19856560, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ammonia | HCID 222 | — |
| Reactant | HCID 19856557 | HCID 19856557 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 19856560 | HCID 19856560 | — |
Reaction Steps
A mixture of 4.6 g of 1-ethyl-3,5-dibromopyrazin-2-one, 9.6 ml of dioxane and 6.4 ml of 30% ammonia is stirred at 20°-25° C. for 15 hours. The product is filtered off and washed with alcohol and ether to give 1.3 g of 1-ethyl-3-amino-5-bromo-pyrazin-2-one with a melting point of 227°-230° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04795486 |
| Source dataset | uspto-grants-1989_01 |
| ORD ID | ord-04c295e7ac8b490e83a2d2960b49fd04 |
| Source note | uspto-grants-1989_01 |