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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1740671Generated: October 30, 2026

Acetic Anhydride → 4-Acetoxy-2-fluorobenzoic acid

https://huagongshe.com/reaction/1740671

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 2-fluoro-4-hydroxybenzoic acid and 8.4 g of acetic anhydride were placed in a two-necked flask and mixed. With the mixture cooling with water, 5 drops of sulfuric acid were added. After heat generation finished, the mixture was heated at 80° C. for 30 minutes. Thereafter, the reaction mixture was poured into ice water, and a precipitated crystal was recovered by filtration.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05972243
Source datasetuspto-grants-1999_10
ORD IDord-579fe20725d34195bd72d03a48761528
Source noteuspto-grants-1999_10