HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanolamine → HCID 178526234, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanolamine | HCID 700 | — |
| Reactant | 2-Formylquinoxaline-1,4-dioxide hydrate | HCID 178526945 | — |
| Catalyst | Methanol | HCID 887 | — |
| Solvent | Triethylamine | HCID 8471 | — |
| Product | HCID 178526234 | HCID 178526234 | — |
Reaction Steps
2-Formylquinoxaline-1,4-dioxide hydrate 4 g (0.02 mole) was dissolved at 60°-65° C. in 30 ml methanol containing 2-4 drops of triethylamine. The solution was agitated and 1.5 g (0.0246 mole) of ethanolamine was added. The heat source was removed and the mixture was then allowed to cool slowly to room temperature with stirring. There was obtained a precipitate of 2-(2-oxazolidinyl)quinoxaline-1,4-dioxide (hereinafter designated P-2244 for convenience). The precipitate was filtered, rinsed with a small amount of methanol, then dried. The resulting product had a melting point of 153°-154° C. and analyzed as follows:
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04241061 |
| Source dataset | uspto-grants-1980_12 |
| ORD ID | ord-9072884705c1461aa46b69ae7e870348 |
| Source note | uspto-grants-1980_12 |