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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2205819Generated: November 1, 2026

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

https://huagongshe.com/reaction/2205819

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 numberUS09371332B2
Source datasetuspto-grants-2016_06
ORD IDord-8a12f44189f1496f9eea1992a55f38b0
Source noteuspto-grants-2016_06