HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 13779362, compound → HCID 178475110, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 13779362 | HCID 13779362 | — |
| Reactant | 3,5-Diacetyl-2,6-dihydroxy-4h-pyran-4-one | HCID 135465969 | — |
| Catalyst | Palladium | HCID 23938 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 178475110 | HCID 178475110 | — |
Reaction Steps
A solution of 2.0 g. (0.0095 mol) of 3-ethoxycarbamoylnitrobenzene in 100 ml. of 2B ethanol was hydrogenated over 200 mg. of 10% palladium-on-carbon at 50 psi. Reduction was complete in 1 hour, the catalyst was filtered and to the filtrate was added 1.71 g. (0.0095 mol) of 3,5-diacetyl-4,6-dihydroxy-2H-pyranone. The mixture was heated under reflux for 1.5 hours, cooled, and the product filtered to yield 5-acetyl-4-hydroxy-3-[1-(3-ethoxycarbamoylphenylamino)ethylidene]-2H-pyran-2,6-(3H)-dione, m.p. 162°-164° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04160021 |
| Source dataset | uspto-grants-1979_07 |
| ORD ID | ord-6624f7d61ee5400d88c1505d0a6a3318 |
| Source note | uspto-grants-1979_07 |