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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 439324Generated: October 31, 2026

Hydrochloric Acid → HCID 67764133, compound

https://huagongshe.com/reaction/439324

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzoic acid, 2-amino-5-fluoro-3-nitro- (9CI)HCID 18548624—
CatalystPalladiumHCID 23938—
ProductHCID 67764133HCID 6776413379%

Reaction Steps

A pressure flask capable of withstanding 150 psi. was added 2-amino-5-fluoro-3-nitrobenzoic acid (1.0 g, 5.0 mmol) dissolved in 6M hydrochloric acid (40 mL) and 10% palladium on carbon (100 mg). The reaction was placed in a Parr apparatus and the flask flushed three times with hydrogen leaving an internal pressure of 65 psi. The reaction was continued for 16 hours while maintaining a pressure of 65 psi. The reaction was filtered through celite, washed with cold water and the filtrate evaporated to dryness to give 2,3-diamino-5-fluorobenzoic acid dihydrochloride (962 mg, 79%) as a light brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05514676
Source datasetuspto-grants-1996_05
ORD IDord-c5943905d8644d9883646609595c006f
Source noteuspto-grants-1996_05