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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 645912Generated: October 30, 2026

Phthalic Anhydride → 2-[2-(Pyridin-2-yl)ethyl]-1H-isoindole-1,3(2H)-dione

https://huagongshe.com/reaction/645912

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
Reactant2-PyridineethanamineHCID 75919—
Product2-[2-(Pyridin-2-yl)ethyl]-1H-isoindole-1,3(2H)-dioneHCID 23138066%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of phthalic anhydride 4 (5.0 g, 33.7 mmol) and pyridylethylamine (4.04 mL, 33.7 mmol) were heated together at 100° C. for 4 h. The resulting red oil upon cooling to room temperature yielded an off-white solid that was filtered and dried under vacuum to provide 5 as a white solid (5.6 g, 66%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07705021B2
Source datasetuspto-grants-2010_04
ORD IDord-73fc9de3020547418bb5e6f27d24aa49
Source noteuspto-grants-2010_04