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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1934923Generated: October 27, 2026

4-[(3-Bromophenyl)amino]-6,7-dimethoxyquinoline-3-carbonitrile → 4-(3-Bromophenylamino)-6,7-dihydroxy-3-quinolinecarbonitrile

https://huagongshe.com/reaction/1934923

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-[(3-Bromophenyl)amino]-6,7-dimethoxyquinoline-3-carbonitrileHCID 5328840—
ReactantPyridinium chlorideHCID 10176127—
SolventWaterHCID 962—
Product4-(3-Bromophenylamino)-6,7-dihydroxy-3-quinolinecarbonitrileHCID 135402848—

Reaction Conditions

Temperature207 °C

Reaction Steps

5.11 g of of 4-[(3-bromophenyl)amino]-6,7-dimethoxy-3-quinolinecarbonitrile and 30.74 g of pyridine hydrochloride were intimately mixed and then heated under nitrogen at 207° C. for an hour. On cooling the reaction was treated with about 100 ml of water and the solid was filtered. This solid was digested with methyl cellusolve and washed with ether to give 3.00 g of 4-[(3-bromophenyl)amino]-6,7-dihydroxy-3-quinolinecarbonitrile: mass spectrum (electrospray, m/e): M+H 356, 358.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06384051B1
Source datasetuspto-grants-2002_05
ORD IDord-35d43a9df27b4abeb42d2113d6832a51
Source noteuspto-grants-2002_05