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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 605699Generated: October 30, 2026

Hydrochloric Acid → HCID 22286045, compound

https://huagongshe.com/reaction/605699

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantLithium amideHCID 24532—
Reactant2-Fluoro-4-iodoanilineHCID 185694—
Reactant2,4,5-Trifluorobenzoic acidHCID 521170—
SolventAcetonitrileHCID 6342—
ProductHCID 22286045HCID 2228604543.5%

Reaction Conditions

Temperature60 °C

Reaction Steps

2,4,5-Trifluorobenzoic acid (643 mg, 3.65 mmol) and 2-fluoro-4-iodoaniline (1.0 g, 4.22 mmol) were taken into acetonitrile (30 mL) followed by addition of lithium amide (290 mg, 12.7 mmol) and the mixture was heated to 60° C. under a nitrogen atmosphere for one hour. On cooling to room temperature the mixture was added to 1 N aqueous hydrochloric acid (100 mL) and the precipitate formed was collected by filtration and washed once with water then hexanes and dried in vacuo to give 4,5-difluoro-2-[(2-fluoro-4-iodophenyl)amino]benzoic acid (624 mg, 43% yield) as a tan solid. 1H-NMR (400 MHz, D6-DMSO): 13.65 (br s, 1H), 9.63 (s, 1H), 7.84 (tr, 1H), 7.71 (d, 1H), 7.52 (d, 1H), 7.32 (tr, 1H), 7.03-6.98 (dd, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07915250B2
Source datasetuspto-grants-2011_03
ORD IDord-a5092e1f23e94d2a86bc478b8b462c89
Source noteuspto-grants-2011_03