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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 703265Generated: October 25, 2026

Hydrochloric Acid → Fenpiclonil

https://huagongshe.com/reaction/703265

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium ethoxideHCID 2723922—
Reactant3-(2,3-Dichlorophenacylamino)acrylonitrileHCID 67944094—
SolventEthanolHCID 702—
ProductFenpiclonilHCID 91724—

Reaction Steps

To 4.2 g of the 3-(2,3-dichlorophenacylamino)acrylonitrile obtained in (a) is added 0.5 g of sodium ethylate in 50 ml of ethanol. The reaction mixture is heated to reflux temperature, cooled to room temperature, poured into a mixture of dilute hydrochloric acid and ice, and stirred for c. 1 hour. The precipitate is isolated by filtration, washed with water and dried, affording the title compound in quantitative yield. Melting point: 149°-150° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04981990
Source datasetuspto-grants-1991_01
ORD IDord-65fcef710e364f1da125fbc8a1e1ed8b
Source noteuspto-grants-1991_01