HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → 2-methyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenol
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 1-(4-(benzyloxy)-3-methylphenyl)-4-(trifluoromethyl)-1H-pyrazole | HCID 68156562 | — |
| Reactant | HCID 178418361 | HCID 178418361 | — |
| Catalyst | Palladium hydroxide | HCID 9942167 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 2-methyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenol | HCID 68156266 | 86.7% |
Reaction Steps
A mixture of 1-(4-(benzyloxy)-3-methylphenyl)-4-(trifluoromethyl)-1H-pyrazole (670 mg, 2.0 mmol), 20% palladium hydroxide on activated carbon (50 mg), ethanol (20 ml), and THF (20 ml) was shaken under 40 psi of hydrogen gas at the ambient temperature for 3 days and at +50° for 1 day, to drive reaction to completion. The reaction was filtered through a pad of Celite and the mother liquor was concentrated to obtain the target product as a colorless solid (420 mg, 86%). MS (M+1): 243.0.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08859591B2 |
| Source dataset | uspto-grants-2014_10 |
| ORD ID | ord-cee29c5d5b734b6d84651e2ac1fc04c5 |
| Source note | uspto-grants-2014_10 |