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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2415891Generated: October 26, 2026

Ammonia → 8-Bromo-2-chloroquinoline

https://huagongshe.com/reaction/2415891

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantWaterHCID 962—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant8-Bromo-1,2-dihydroquinolin-2-oneHCID 10933094—
Product8-Bromo-2-chloroquinolineHCID 10955755—

Reaction Steps

A suspension of 2.8 g (12.49 mmol) of 8-bromo-1H-quinoline-2-one in 20 ml of phosphorus oxychloride is refluxed for 90 minutes and the reaction mixture is cooled and then added dropwise to 200 ml of water. The aqueous solution is made basic with concentrated ammonia solution, the precipitate formed is filtered off and washed with water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06821967B2
Source datasetuspto-grants-2004_11
ORD IDord-5a0e0f02466448bca837c883e86815a5
Source noteuspto-grants-2004_11