HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazine hydrate (1:1) → HCID 10502648, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | Ethyl 4-(2,4-dibenzyloxyphenyl)-2,4-dioxobutanoate | HCID 11796971 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 10502648 | HCID 10502648 | — |
Reaction Steps
A solution of ethyl 4-(2,4-dibenzyloxyphenyl)-2,4-dioxobutanoate (3.23 g) in ethanol (10 mL) is treated with hydrazine hydrate (0.4 mL), refluxed for 2 hours and then cooled to room temperature. The mixture is filtered to yield ethyl 3-(2,4-dibenzyloxyphenyl)-pyrazole-5-carboxylate as a solid (1.5 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06211234B1 |
| Source dataset | uspto-grants-2001_04 |
| ORD ID | ord-22f5c21106cf4d6aa75d6de132395507 |
| Source note | uspto-grants-2001_04 |