HuagongsheHuagongshe Chemistry Print Report · For research reference only
O-Phenylenediamine → HCID 178467264, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | O-Phenylenediamine | HCID 7243 | — |
| Reactant | 3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-one | HCID 135465969 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 178467264 | HCID 178467264 | — |
Reaction Steps
o-Phenylenediamine (2.1 g., 0.02 m.) is added to a hot solution of 4.2 g. (0.02 m.) of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one in methanol and the resulting mixture is refluxed for two hours. The reaction mixture is cooled and filtered to yield 5-acetyl-3-[1-(o-aminophenylamino)ethylidene]-4-hydroxy-2H-pyran-2,6(3H)-dione, m.p. 179°-181° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04032652 |
| Source dataset | uspto-grants-1977_06 |
| ORD ID | ord-5a19ae3dd2b345f6b44fa3533f708652 |
| Source note | uspto-grants-1977_06 |