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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1615720Generated: November 1, 2026

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

https://huagongshe.com/reaction/1615720

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 numberUS08765762B2
Source datasetuspto-grants-2014_07
ORD IDord-77b1fd40d5374d3095c259e8bdab88e5
Source noteuspto-grants-2014_07