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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1095511Generated: November 2, 2026

Water → 2-[2-(1H-indol-3-yl)ethyl]-1H-Isoindole-1,3(2H)-dione

https://huagongshe.com/reaction/1095511

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTryptamineHCID 1150—
ReactantPhthalic AnhydrideHCID 6811—
SolventTolueneHCID 1140—
Product2-[2-(1H-indol-3-yl)ethyl]-1H-Isoindole-1,3(2H)-dioneHCID 288577—

Reaction Steps

A solution of tryptamine (3.04 g, 19.0 mmol) and phthalic anhydride (3.0 g, 20.0 mmol) in toluene (300 ml) was boiled under reflux for 12 h using a water separator. The solvent was removed i. vac. and the residue was recrystallized from methylene chloride/cyclohexane. Yield: 4.46 g (81%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08138187B2
Source datasetuspto-grants-2012_03
ORD IDord-10e4f6e9b27f4f91a28a43a56083ab90
Source noteuspto-grants-2012_03