HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl 3-oxovalerate → 1-Cyclopropyl-5-ethyl-1H-pyrazole-4-carbaldehyde
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl 3-oxovalerate | HCID 78656 | — |
| Reactant | 5-cyclopropyl-1-(propan-2-yl)-1H-pyrazole-4-carbaldehyde | HCID 19620135 | — |
| Reactant | Cyclopropylhydrazine oxalate | HCID 67509750 | — |
| Product | 1-Cyclopropyl-5-ethyl-1H-pyrazole-4-carbaldehyde | HCID 21097240 | — |
Reaction Steps
1-Cyclopropyl-5-ethyl-1H-pyrazole-4-carbaldehyde was prepared with ethyl 3-oxopentanoate and cyclopropyl hydrazine oxalate (Gever, G. and Hayes, K. J. Org. Chem, 1949, 14, 813–818) in the same manner as 5-cyclopropyl-1-isopropyl-1H-pyrazole-4-carbaldehyde (Example 49).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07214802B2 |
| Source dataset | uspto-grants-2007_05 |
| ORD ID | ord-7653462e51854b9f8153d7359c491362 |
| Source note | uspto-grants-2007_05 |