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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2174622Generated: October 31, 2026

Potassium Carbonate → 4-[(1,3-Dimethyl-1H-pyrazol-5-yl)oxy]-3,5-difluorobenzonitrile

https://huagongshe.com/reaction/2174622

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl-HCID 17673—
Reactant3,4,5-TrifluorobenzonitrileHCID 593814—
SolventDimethylformamideHCID 6228—
Product4-[(1,3-Dimethyl-1H-pyrazol-5-yl)oxy]-3,5-difluorobenzonitrileHCID 6661244392.3%

Reaction Conditions

Temperature75 °C

Reaction Steps

Potassium carbonate (1.38 g, 10 mmol) was added to a solution of 2,4-dihydro-2,5-dimethyl-3H-pyrazol-3-one (0.70 g, 6.3 mmol) in N,N-dimethylformamide (15 mL). 3,4,5-Trifluorobenzonitrile (0.94 g, 6.0 mmol) was added, and the reaction mixture was heated at 75° C. under a nitrogen atmosphere for 16 h, then allowed to cool. The reaction mixture was partitioned between water (60 mL) and ethyl acetate (30 mL). The organic phase was washed with water (2×30 mL) and brine (30 mL), dried over MgSO4, and concentrated to give the title compound as a yellow oil (1.38 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09062005B2
Source datasetuspto-grants-2015_06
ORD IDord-8317200baf0c434b81eade0702d75a70
Source noteuspto-grants-2015_06