HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 70455822, compound → HCID 20228775, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | HCID 70455822 | HCID 70455822 | — |
| Solvent | 1,1'-Biphenyl, mixt. with 1,1'-oxybis(benzene) | HCID 24670 | — |
| Product | HCID 20228775 | HCID 20228775 | 99% |
Reaction Steps
Diethyl 2-(pyrazol-4-ylamino)fumarate (7.74 g, 30 mmol) was added to boiling Dowtherm A (250 ml). The solution was heated under reflux for 10 min, and then allowed to cool to room temperature. 60°-80° petrol (250 ml) added and the solid was collected and washed well with petrol, to give the title compound as pale yellow needles (5.77 g, 99%), m.p. 287°-292° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04621089 |
| Source dataset | uspto-grants-1986_11 |
| ORD ID | ord-d68e61a781024d0bbd57fd288c7b15d3 |
| Source note | uspto-grants-1986_11 |