HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 178481764, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | Ethyl N-(4-cyano-1-methyl-1H-pyrazol-5-yl)methanimidate | HCID 242634 | — |
| Product | HCID 178481764 | HCID 178481764 | — |
Reaction Steps
160 g. of 1-methyl-4-cyano-5-ethoxymethyleneaminopyrazole are dissolved in 1 liter of absolute ethanol and 76.0 g. of hydrazine hydrate are added dropwise with stirring. This mixture is refluxed for 8 hours. After cooling, the product, 1,5-dihydro-1-methyl-4H-pyrazolo-[3,4-d]pyrimidin-4-one hydrazone, is filtered under suction and crystallized from dimethylformamide, yield 135 g., m.p. 231°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04053474 |
| Source dataset | uspto-grants-1977_10 |
| ORD ID | ord-7ae7be94d6614ebeb85732f99cb79876 |
| Source note | uspto-grants-1977_10 |