HuagongsheHuagongshe Chemistry Print Report · For research reference only
Semicarbazide hydrochloride → 2-Phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde semicarbazone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Semicarbazide hydrochloride | HCID 11236 | — |
| Reactant | 2-Phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde | HCID 15158179 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 2-Phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde semicarbazone | HCID 53932945 | 41.5% |
Reaction Steps
A mixture of 2-phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde (0.5 g) and semicarbazide hydrochloride (0.25 g) in ethanol (7 ml) was refluxed for 1 hour and then cooled. The resulting precipitates were filtered and recrystallized from a mixture of water and ethanol to give 2-phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde semicarbazone (0.26 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04925849 |
| Source dataset | uspto-grants-1990_05 |
| ORD ID | ord-faf1582ae4744e659805437bf9906bdd |
| Source note | uspto-grants-1990_05 |