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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 322066Generated: October 26, 2026

3-(4-Pyridyl)aniline → 3-[3-(4-Pyridyl)Anilino]-3-Cyclobutene-1,2-Dione

https://huagongshe.com/reaction/322066

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(4-Pyridyl)anilineHCID 459523—
Reactant3-Butoxycyclobut-3-ene-1,2-dioneHCID 15723182—
SolventEthanolHCID 702—
Product3-[3-(4-Pyridyl)Anilino]-3-Cyclobutene-1,2-DioneHCID 983783176.8%

Reaction Steps

A solution of 4-(3-aminophenyl)pyridine (0.81 g) and 3-n-butoxy-3-cyclobutene-1,2-dione (0.73 g) in ethanol (20 ml) is stirred at ambient temperature for 15 hours. The resultant precipitated solid is washed with methanol and ether and recrystallized from dimethyl formamide to give 0.91 g of the title compound, mp 252-255.5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211220B1
Source datasetuspto-grants-2001_04
ORD IDord-f402d218b9ee48c28e8843565ed69c3d
Source noteuspto-grants-2001_04