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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636335Generated: October 25, 2026

Acetic Acid → 4-[(2-methoxyanilino)methylidene]-5-methyl-2-phenylpyrazol-3-one

https://huagongshe.com/reaction/1636335

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantMci-186HCID 4021—
Reactant2-MethoxyanilineHCID 7000—
SolventMethanolHCID 887—
Product4-[(2-methoxyanilino)methylidene]-5-methyl-2-phenylpyrazol-3-oneHCID 178489588—

Reaction Steps

5-Methyl-2-phenyl-2,4-dihydro-pyrazol-3-one 2 g trimethylorthoformiate (188 ml) and o-anisidin (1.29 ml) are heated swith glacial acetic acid (5 ml) to 70° C. for 2 hours. After the reaction mixture cools down, methanol is added. The precipitate is collected and recrystallized in ethylacetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06034099
Source datasetuspto-grants-2000_03
ORD IDord-a1630f581d4c42ee937e13720b101adb
Source noteuspto-grants-2000_03