HuagongsheHuagongshe Chemistry Print Report · For research reference only
Nitric Acid → 6-hydroxy-7-nitro-2H-1,4-benzoxazin-3-(4H)-one
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Nitric Acid | HCID 944 | — |
| Reactant | 6-Hydroxy-2H-1,4-benzoxazin-3(4H)-one | HCID 11378689 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Product | 6-hydroxy-7-nitro-2H-1,4-benzoxazin-3-(4H)-one | HCID 21298685 | — |
Reaction Steps
Fumic nitric acid (δ 1.52, 2.6 ml, 0.062 mole) in acetic acid (5 ml) was added dropwise under stirring to 6-hydroxy-2H-1,4-benzoxazin-3-(4H)-one (Coupler (1), 10.3 g, 0.062 mole) in acetic acid (100 ml) at room temperature. The 6-hydroxy-7-nitro-1,4-benzoxazin-3-one (6.7 g, 51%) separated as yellow prisms.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04762925 |
| Source dataset | uspto-grants-1988_08 |
| ORD ID | ord-d29846ee8c384435adf5c7c1588d6c1e |
| Source note | uspto-grants-1988_08 |