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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1433451Generated: October 30, 2026

Ethanol → Ethyl(E)-3-[2-amino-4-(4-aminophenoxy)-3-pyridyl]-propenoate

https://huagongshe.com/reaction/1433451

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantDimethylformamideHCID 6228—
ReactantAmmonium ChlorideHCID 25517—
ReactantEthyl(E)-3-[2-amino-4-(4-nitrophenoxy)-3-pyridyl]-2-propenoateHCID 58931221—
CatalystIronHCID 23925—
SolventWaterHCID 962—
ProductEthyl(E)-3-[2-amino-4-(4-aminophenoxy)-3-pyridyl]-propenoateHCID 58931285—

Reaction Steps

Ethyl (E)-3-[2-amino-4-(4-nitrophenoxy)-3-pyridyl]-2-propenoate (350 mg), iron powder (700 mg), ammonium chloride (1.4 g), dimethylformamide (7 ml), ethanol (2 ml) and water (2 ml) were stirred at 100° C. for 20 minutes. The mixture was filtered with celite, and then water and ethyl acetate were added for extraction. The organic layer was washed 5 times with aqueous ammonium chloride solution and then dried over magnesium sulfate. The drying agent was filtered off and the solvent was distilled off under reduced pressure to obtain 230 mg of the target substance as a light yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07612092B2
Source datasetuspto-grants-2009_11
ORD IDord-fff7a9c185b548198e51e5bd8831feb0
Source noteuspto-grants-2009_11