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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1603603Generated: November 3, 2026

Ethyl Acetate → HCID 19605473, compound

https://huagongshe.com/reaction/1603603

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 19605444HCID 19605444—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 19605473HCID 1960547388%

Reaction Steps

0.078 g (0.00021 mol) of [2-bromo-6-(4-nitrobenzenesulphonyl) -pyridin-4-yl]-methylamine was dissolved in a mixture of 1.5 ml of methanol and 1.5 ml of dioxane, treated with 0.078 g of iron powder and a solution of 0.078 g of NH4Cl in 2.5 ml of water and heated at reflux for 2 hrs. Therafter, the reaction mixture was poured into a mixture of ethyl acetate and water, suction filtered and the organic phase was extracted with water and sat. sodium chloride solution and dried over MgSO4. After removal of the solvent the residue was chromatographed on silical gel with ethyl acetate/hexane 1:3. There was obtained 0.063 g (88%) of [2-(4-aminobenzenesulphonyl)-6-bromopyridin-4-yl]-methylamine as yellowish crystals; m.p.: 158-160° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05990105
Source datasetuspto-grants-1999_11
ORD IDord-e14a0a2544fe475fa759e025b6ae2a34
Source noteuspto-grants-1999_11