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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1449485Generated: November 3, 2026

Phosgene → pyrrolo[1,2-a]quinoxalin-4(5H)-one

https://huagongshe.com/reaction/1449485

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosgeneHCID 6371—
Reactant2-(1H-pyrrol-1-yl)anilineHCID 80123—
SolventTolueneHCID 1140—
Productpyrrolo[1,2-a]quinoxalin-4(5H)-oneHCID 2740936—

Reaction Steps

15 g (0.095 mol) of 2-(1-pyrrolyl)aniline is brought to reflux for 1 h 30 min, in 200 cm3 of toluene, in the presence of 50 cm3 of a 20% solution of phosgene in toluene. After cooling, the precipitate formed is filtered off, washed with ethyl ether, dried and recrystallized from acetonitrile (white powder sublimed at 270° C.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05599812
Source datasetuspto-grants-1997_02
ORD IDord-258dd5dc38914bef95f011ce80bb98eb
Source noteuspto-grants-1997_02