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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 243876Generated: October 30, 2026

Hydrochloric Acid → 3-fluoro-2-(1H-pyrazol-5-yl)benzoic acid

https://huagongshe.com/reaction/243876

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
Reactant3-fluoro-2-(1H-pyrazol-5-yl)benzonitrileHCID 67116928—
Product3-fluoro-2-(1H-pyrazol-5-yl)benzoic acidHCID 6708660999%

Reaction Steps

To 3-fluoro-2-(1H-pyrazol-5-yl)benzonitrile in MeOH (3 mL) was added 2M aq. NaOH (1 mL). The reaction was heated at reflux for 15 h, then cooled to rt, acidified with 1N aq. HCl to pH=1 and extracted with EtOAc to give (210 mg, 99%) of 3-fluoro-2-(1H-pyrazol-5-yl)benzoic acid which was used crude.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08653263B2
Source datasetuspto-grants-2014_02
ORD IDord-29baa80b45d44a0c9b001851f3d49b34
Source noteuspto-grants-2014_02