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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 588616Generated: October 30, 2026

Ethanol → 3-(3-fluorophenyl)-4-(2-phenylethynyl)-1H-pyrazol-5-amine

https://huagongshe.com/reaction/588616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 178474488HCID 178474488—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
Product3-(3-fluorophenyl)-4-(2-phenylethynyl)-1H-pyrazol-5-amineHCID 17850910769.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of N-[3-(3-fluorophenyl)-4-(2-phenylethynyl)-1H-pyrazol-5-yl]acetamide (2 g, 6.2 mmol), ethanol (22 mL) and 25% aq. NaOH solution (22 mL) was stirred and heated to 80° C. for 1 h and cooled to room temperature. The reaction mixture was diluted with ethyl acetate and water. The organic phase was washed with water and brine, dried (phase separator cartridge) and concentrated in vacuo, to provide the title compound as a solid (1.2 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09227976B2
Source datasetuspto-grants-2016_01
ORD IDord-7c5fceb3c465488cb1b57db898e23899
Source noteuspto-grants-2016_01