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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1725668Generated: November 2, 2026

Ethanol → HCID 57562941, compound

https://huagongshe.com/reaction/1725668

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 57562895HCID 57562895—
CatalystIronHCID 23925—
SolventWaterHCID 962—
ProductHCID 57562941HCID 57562941—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a heterogeneous solution of 3-aminosulfonyl-4-fluoro-5-methylnitrobenzene (27) (0.5 g, 2 mmol) in of ethanol:water (50 mL, each) were added iron powder (1.08 g, 20 mmol), and ammonium chloride (1.08 g, 20 mmol) at room temperature. The resulting heterogeneous mixture was then stirred at 60° C. for 2 hours, filtered through celite (when hot), washed with ethanol (2×50 mL) and then the solvent was removed under reduced pressure. The residue upon dilution with water was extracted with ethyl acetate (3×50 mL), and the organic phase was dried over anhydrous sodium sulfate and concentrated under a reduced pressure to obtain 3-aminosulfonyl-4-fluoro-5-methylaniline (28). LCMS: purity: 85%; MS (m/z): 205 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07491732B2
Source datasetuspto-grants-2009_02
ORD IDord-ce2fc56838d24b638dc214408fe1aee7
Source noteuspto-grants-2009_02