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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 612004Generated: October 27, 2026

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

https://huagongshe.com/reaction/612004

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 numberUS06002008
Source datasetuspto-grants-1999_12
ORD IDord-36e3028e0d334f368a1b70c02048174b
Source noteuspto-grants-1999_12