HuagongsheHuagongshe Chemistry Print Report · For research reference only
Acetic Anhydride → HCID 12251780, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Acetic Anhydride | HCID 7918 | — |
| Reactant | HCID 178497612 | HCID 178497612 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 12251780 | HCID 12251780 | — |
Reaction Steps
A mixture of 5.0 g of 5-(4-methoxyphenyl)-3-(2-carbomethoxyphenyl)pyrazole, 3.5 g of acetic anhydride, and 25 ml of pyridine was allowed to stir overnight at 25°. The mixture was poured into 100 ml of ice water, and the product was extracted with benzene. Recrystallization from hexane-ethyl acetate (2:1) gave 1-acetyl-3-(2-carbomethoxyphenyl)-5-(4-methoxyphenyl)pyrazole, mp 119°-121°.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US03948937 |
| Source dataset | uspto-grants-1976_04 |
| ORD ID | ord-c627323c52954e5890db693e56fe4ff4 |
| Source note | uspto-grants-1976_04 |