HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazine hydrate (1:1) → 2,3-Dihydro-3-oxo-6-(4-pyridinyl)-4-pyridazinecarboxylic acid hydrazide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | Ethyl 3-oxo-6-(pyridin-4-yl)-2,3-dihydropyridazine-4-carboxylate | HCID 12790231 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 2,3-Dihydro-3-oxo-6-(4-pyridinyl)-4-pyridazinecarboxylic acid hydrazide | HCID 12790239 | — |
Reaction Steps
10 g of 3-oxo-6-pyridin-4-yl-2,3-dihydro-pyridazine-4 -carboxylic acid ethyl ester are dissolved in 150 ml of ethanol, 4.2 ml of hydrazine hydrate is added and the mixture is refluxed for 5 hours. After cooling to room temperature, the solid is collected by filtration and dried in vacuo at 40° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07507734B2 |
| Source dataset | uspto-grants-2009_03 |
| ORD ID | ord-b6617c3e1efe40648bbe980703bbf55d |
| Source note | uspto-grants-2009_03 |