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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 499505Generated: October 31, 2026

Phthalic Anhydride → 2-(2-Pyridinylmethyl)-1H-isoindole-1,3(2H)-dione

https://huagongshe.com/reaction/499505

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantTriethylamineHCID 8471—
Reactant2-PyridinemethanamineHCID 19509—
SolventTolueneHCID 1140—
Product2-(2-Pyridinylmethyl)-1H-isoindole-1,3(2H)-dioneHCID 61720286.2%

Reaction Steps

2-Aminomethylpyridine (4.0 g, 37 mmol) and phthalic anhydride (5.5 g, 37 mmol) were dissolved in toluene (100 ml), and triethylamine (3.7 g, 36 mmol) was added thereto. The mixture was refluxed for 3 hrs. The solvent was evaporated, and the residue was recrystallized from hexane-ethanol to give the titled compound (7.6 g, 86%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07767665B2
Source datasetuspto-grants-2010_08
ORD IDord-95363a66849c409b8ab916f065f7ebb8
Source noteuspto-grants-2010_08