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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 705414Generated: October 26, 2026

Acetone → 4-(2-Carboxypropan-2-ylamino)-2-fluorobenzoic acid

https://huagongshe.com/reaction/705414

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetoneHCID 180—
ReactantChlorobutanolHCID 5977—
ReactantSodium HydroxideHCID 14798—
Reactant4-Amino-2-fluorobenzoic acidHCID 302680—
Product4-(2-Carboxypropan-2-ylamino)-2-fluorobenzoic acidHCID 67395503—

Reaction Conditions

Temperature0 °C

Reaction Steps

4-Amino-2-fluoro-benzoic acid (0.2 g, 1.29 mmol) and 1,1,1-trichloro-2-methyl-propan-2-ol (0.593 g, 3.35 mmol) were dissolved in anhydrous acetone and the solution was cooled at 0° C. Powdered sodium hydroxide (0.2 g, 5.01 mmol) was added portion-wise after which the reaction mixture was warmed to and stirred at room temperature for 12 h. Volatiles were removed under reduced pressure and the residue was acidified with 1M aqueous HCl. The crude product obtained was purified by reverse phase HPLC to obtain 4-(1-carboxy-1-methyl-ethylamino)-2-fluoro-benzoic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174943B2
Source datasetuspto-grants-2015_11
ORD IDord-8de38b3b91444bbfa8ff00208485c8cd
Source noteuspto-grants-2015_11