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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1699892Generated: October 30, 2026

4-Aminobenzonitrile → 4-(((2,2-Dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)methyl)amino)benzonitrile

https://huagongshe.com/reaction/1699892

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminobenzonitrileHCID 13396—
Reactant2,2-Dimethyl-1,3-dioxane-4,6-dioneHCID 16249—
ReactantEthylorthoformateHCID 53630039—
SolventEthanolHCID 702—
Product4-(((2,2-Dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)methyl)amino)benzonitrileHCID 1169470571.2%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of p-aminobenzonitrile (2.00 g), Meldrum's acid (2.56 g), ethyl orthoformate (2.76 g) and ethanol (10 ml) was heated at 120° C. (bath temperature) to evaporate the ethanol. Ethyl acetate was added to the obtained orange solid. The solid was pulverized, collected by filtration and washed with ethyl acetate to give the object compound (3.28 g) as a white powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06348474B1
Source datasetuspto-grants-2002_02
ORD IDord-3d412e743780466e841877e60d7dc848
Source noteuspto-grants-2002_02