HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
O-Phenylenediamine → 2(1H)-Quinoxalinone, 3-(3,4-dihydroxy-5-nitrophenyl)-
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | O-Phenylenediamine | HCID 7243 | — |
| Edukt | Benzeneacetic acid, 3,4-dihydroxy-5-nitro-alpha-oxo-, hexyl ester | HCID 5747978 | — |
| Lösungsmittel | Methanol | HCID 887 | — |
| Produkt | 2(1H)-Quinoxalinone, 3-(3,4-dihydroxy-5-nitrophenyl)- | HCID 135665317 | — |
Reaktionsschritte
A mixture of 396.0 mg of n-hexyl 3,4-dihydroxy-5-nitrophenylglyoxylate and 137.6 mg of 1,2-phenylenediamine is heated to 120° for 60 minutes. Thereafter, the mixture is suspended in methanol, filtered under suction and recrystallized from N,N-dimethylformamide/water. There is obtained 3-(3,4-dihydroxy-5-nitrophenyl)-2(1H)-quinoxalinone of m.p. >300°.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05389653 |
| Quelldatensatz | uspto-grants-1995_02 |
| ORD ID | ord-c245f17d7eed4973844b162fb366d595 |
| Quellennotiz | uspto-grants-1995_02 |