HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl Acetoacetate → 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl Acetoacetate | HCID 8868 | — |
| Reactant | 4-Hydrazinobenzoic acid | HCID 12089 | — |
| Product | 4-(3-Methyl-5-oxo-2-pyrazolin-1-yl)benzoic acid | HCID 109029 | — |
Reaction Steps
From the reaction of 4-hydrazinobenzoic acid and ethylacetoacetate, 4-(4,5-dihydro-5-oxo-3-methyl-1H-pyrazol-1-yl)-benzoic acid is obtained. Subsequent reaction with 2-ethylaniline yeilds 4-(4-(2-ethylanilinomethylene)-4,5-dihydro-5-oxo-3-methyl-1H-pyrazol-1-yl)-benzoic acid, Mp 291° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06034099 |
| Source dataset | uspto-grants-2000_03 |
| ORD ID | ord-de879adfbac14f2b8e48d0ac2982885a |
| Source note | uspto-grants-2000_03 |