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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1530773Generated: November 4, 2026

Acetic Anhydride → 4-Acetoxy-2-fluorobenzoic acid

https://huagongshe.com/reaction/1530773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant2-Fluoro-4-hydroxybenzoic AcidHCID 2783398—
CatalystSulfuric AcidHCID 1118—
SolventWaterHCID 962—
Product4-Acetoxy-2-fluorobenzoic acidHCID 22721416—

Reaction Conditions

Temperature80 °C

Reaction Steps

4.3 Grams of 4-hydroxy-2-fluorobenzoic acid and 8.4 g of acetic anhydride were placed in a two-necked flask and mixed. While the mixture was cooled with water, 5 drops of sulfuric acid were added. After heat generation ended, the mixture was heated at 80° C. for 30 minutes. Thereafter, the reaction mixture was poured into cold water, and a precipitated crystal was recovered by filtration.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06197389B1
Source datasetuspto-grants-2001_03
ORD IDord-237d0c17f5094017b823a4ae8834afde
Source noteuspto-grants-2001_03