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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1947575Generated: October 30, 2026

Ethanol → HCID 57562941, compound

https://huagongshe.com/reaction/1947575

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 numberUS08399472B2
Source datasetuspto-grants-2013_03
ORD IDord-8d8d4704493a47f6ab3d2e45e9e35c16
Source noteuspto-grants-2013_03