HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetoacetate → 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetoacetate | HCID 8868 | — |
| Reactant | 4-Nitrophenylhydrazine hydrochloride | HCID 5463401 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-(4-nitrophenyl)- | HCID 80816 | — |
Reaction Steps
1.63 g of p-nitrophenylhydrazine hydrochloride and 1.26 g of ethyl acetoacetate are heated under reflux in 30 ml of ethanol for 45 min. The mixture is concentrated somewhat in vacuo. The crystals which have separated out are then filtered off with suction.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05869516 |
| Source dataset | uspto-grants-1999_02 |
| ORD ID | ord-9708b4ea09704412845a368f792b6756 |
| Source note | uspto-grants-1999_02 |