HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → 3-(5-Nitro-2-furyl)-1-phenylpyrazole-4-carboxaldehyde-(2-pyridyl)hydrazone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 2-Hydrazinopyridine | HCID 78645 | — |
| Reactant | 3-(5-Nitrofuran-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde | HCID 20326255 | — |
| Catalyst | Acetic Acid | HCID 176 | — |
| Solvent | Water | HCID 962 | — |
| Product | 3-(5-Nitro-2-furyl)-1-phenylpyrazole-4-carboxaldehyde-(2-pyridyl)hydrazone | HCID 54368639 | 95% |
Reaction Steps
Stir an admixture of 2 g of 3-(5-nitro-2-furyl)-1-phenylpyrazole-4-carboxaldehyde, 0.92 g of 2-hydrazinopyridine, 50 ml of ethanol and 2 drops of glacial acetic acid for 36 hours at room temperature. Cool the admixture and then form a precipitate with 50 ml of water to obtain a 95% yield of 3-(5-nitro-2-furyl)-1-phenylpyrazole-4-carboxaldehyde-(2-pyridyl)hydrazone [m.p. 228° to 231° C (with decomposition) from dimethylformamide/water].
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04093812 |
| Source dataset | uspto-grants-1978_06 |
| ORD ID | ord-f01a48f9ede241c6b0ef0e314e119ed4 |
| Source note | uspto-grants-1978_06 |