HuagongsheHuagongshe Chemistry Print Report · For research reference only
5-Methyl-2-(4-methylphenyl)pyrazolidin-3-one → 3-Methyl-1-(4-methylphenyl)-1H-pyrazol-5-ol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 5-Methyl-2-(4-methylphenyl)pyrazolidin-3-one | HCID 20362028 | — |
| Reactant | Sodium Nitrite | HCID 23668193 | — |
| Product | 3-Methyl-1-(4-methylphenyl)-1H-pyrazol-5-ol | HCID 2736898 | 88% |
Reaction Steps
7 parts of 3-methyl-1-(4'-methylphenyl)-5-pyrazolidone are treated in a similar manner to that described in Example 1. The actual weight yield is 6.3 g of strength 91.3% (determined by titration with sodium nitrite solution which represents a yield of 88% of 3-methyl-1-(4'-methylphenyl)-5-pyrazolone.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04081597 |
| Source dataset | uspto-grants-1978_03 |
| ORD ID | ord-8a5e9de7d5d84922bd89a0b6033f0780 |
| Source note | uspto-grants-1978_03 |