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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2377794Generated: November 1, 2026

Methanol → 2-(4-Fluorophenylamino)but-2-enedioic Acid Dimethyl Ester

https://huagongshe.com/reaction/2377794

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant4-FluoroanilineHCID 9731—
ReactantMethyl acetylene-dicarboxylateHCID 86613298—
Product2-(4-Fluorophenylamino)but-2-enedioic Acid Dimethyl EsterHCID 69117494—

Reaction Conditions

Temperature55 °C

Reaction Steps

50 ml (0.51 M) of 4-fluoroaniline (at 98%) are introduced into 500 ml of anhydrous methanol, followed by dropwise addition of 70.5 ml (0.56 M) of methyl acetylenedicarboxylate (at 98%). The reaction mixture is heated at 55° C. with stirring for 3 hours, and then evaporated under reduced pressure. The residue is purified by evolution through silica.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07470708B2
Source datasetuspto-grants-2008_12
ORD IDord-7569ed16d16740f0b1a7f10ce6bff34a
Source noteuspto-grants-2008_12