HuagongsheHuagongshe Chemistry Print Report · For research reference only
4-Aminophenol → HCID 178467272, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 4-Aminophenol | HCID 403 | — |
| Reactant | 3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-one | HCID 135465969 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 178467272 | HCID 178467272 | — |
Reaction Steps
To a boiling solution of 4.24 g. (0.02 m.) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in 200 ml. of methanol is added 2.18 g. (0.02 m.) of p-hydroxyaniline. The resulting mixture is refluxed overnight and filtered to yield 5-acetyl-4-hydroxy-3-[1-(p-hydroxyphenylamino)ethylidene]-2H-pyran-2,6(3H)-dione, m.p. 223°-225° C. Both the mono-and di-sodium salts are prepared upon treatment of the dione with sodium methoxide in methanol.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04032652 |
| Source dataset | uspto-grants-1977_06 |
| ORD ID | ord-2386b4e5fd254893807ec5d1002157ad |
| Source note | uspto-grants-1977_06 |