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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2222548Generated: October 31, 2026

Hydrochloric Acid → 4-(2-Carboxymethoxy-ethylamino)-3-fluoro-benzoic acid

https://huagongshe.com/reaction/2222548

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDichloromethaneHCID 6344—
ReactantPotassium HydroxideHCID 14797—
Reactant1,4-DioxaneHCID 31275—
ReactantEthyl 4-[(2-chloro-ethoxy)-acetyl-amino]-3-fluoro-benzoateHCID 86600579—
SolventWaterHCID 962—
Product4-(2-Carboxymethoxy-ethylamino)-3-fluoro-benzoic acidHCID 66731590—

Reaction Conditions

Temperature70 °C

Reaction Steps

580 mg (1.91 mmol) ethyl 4-[(2-chloro-ethoxy)-acetyl-amino]-3-fluoro-benzoate in 6 ml dioxane are combined with 3.82 ml (7.64 mmol) 2-molar potassium hydroxide solution and 2 ml of water. Then the mixture is heated to 70° C. for 2 h, then diluted with water and acidified with 6-molar hydrochloric acid. After the addition of dichloromethane the precipitate formed is suction filtered and dried in the drying cupboard at 50° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07371743B2
Source datasetuspto-grants-2008_05
ORD IDord-a7f9abb99a114c9bbc9ffa33aaba3d05
Source noteuspto-grants-2008_05