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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 537562Generated: October 30, 2026

Ethanol → 2-methyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenol

https://huagongshe.com/reaction/537562

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant1-(4-(benzyloxy)-3-methylphenyl)-4-(trifluoromethyl)-1H-pyrazoleHCID 68156562—
ReactantHCID 178418361HCID 178418361—
CatalystPalladium hydroxideHCID 9942167—
SolventTetrahydrofuranHCID 8028—
Product2-methyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenolHCID 6815626686.7%

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08859591B2
Source datasetuspto-grants-2014_10
ORD IDord-cee29c5d5b734b6d84651e2ac1fc04c5
Source noteuspto-grants-2014_10