HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
2-Aminophenol → 2H-1,4-Benzoxazin-2-one, 3-(3,4-dihydroxy-5-nitrophenyl)-
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 2-Aminophenol | HCID 5801 | — |
| Edukt | Benzeneacetic acid, 3,4-dihydroxy-5-nitro-alpha-oxo-, hexyl ester | HCID 5747978 | — |
| Produkt | 2H-1,4-Benzoxazin-2-one, 3-(3,4-dihydroxy-5-nitrophenyl)- | HCID 135624032 | — |
Reaktionsschritte
A mixture of 3.93 g of n-hexyl 3,4-dihydroxy-5-nitrophenylglyoxylate and 1.38 g of 2-aminophenol is melted at 120° while stirring. The melt crystallizes after 5 minutes. After 2 hours it is cooled and recrystallized from methanol. There is obtained 3-(3,4-dihydroxy-5-nitrophenyl)-2H-1,4-benzoxazin-2-one of m.p. 202°-204°.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05705703 |
| Quelldatensatz | uspto-grants-1998_01 |
| ORD ID | ord-2762f4384742472d9e9794e784b50903 |
| Quellennotiz | uspto-grants-1998_01 |