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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2191897Generated: October 31, 2026

Toluene → N-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)(tert-butoxy)formamide

https://huagongshe.com/reaction/2191897

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantPhthalic AnhydrideHCID 6811—
Reactanttert-Butyl carbazateHCID 70091—
SolventWaterHCID 962—
ProductN-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)(tert-butoxy)formamideHCID 801162104.1%

Reaction Steps

Tert-butyl hydrazinecarboxylate (250 g) was added to a toluene (3 L) solution of phthalic anhydride (280 g). In a Dean Stark water separator, the reaction mixture was heated under reflux for 3 hours. After cooled to room temperature, the formed solid was collected through filtration to give crude tert-butyl (1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)carbamate (516 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329711B2
Source datasetuspto-grants-2012_12
ORD IDord-3ddc9177cea14a2ca5a16015add60ffe
Source noteuspto-grants-2012_12