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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 612205Generated: October 25, 2026

4-Aminoresorcinol → 4-(2,4-Dihydroxy-phenylamino)-6,7-dimethoxy-quinoline-3-carbonitrile

https://huagongshe.com/reaction/612205

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminoresorcinolHCID 432827—
ReactantPyridinium chlorideHCID 10176127—
Reactant4-Chloro-6,7-dimethoxy-quinoline-3-carbonitrileHCID 10586676—
SolventGlycol monoethyl etherHCID 8076—
Product4-(2,4-Dihydroxy-phenylamino)-6,7-dimethoxy-quinoline-3-carbonitrileHCID 2246654798%

Reaction Steps

Using an analogous procedure to that described in Example 286, 248.7 mg (1 mmol) of 4-chloro-6,7-dimethoxy-3-quinolinecarbonitrile in 12 mL of 2-ethoxyethanol and in the presence of 115.6 mg (1 mmol) of pyridine hydrochloride was reacted with 210.0 mg (1.3 mmol) of 4-aminoresorcinol to give 330.4 mg (98.0%) of the product as a deep purple solid, m.p.>250° C., mass (electrospray, m/e): M+H 337.9.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06002008
Source datasetuspto-grants-1999_12
ORD IDord-8ca0a800677148f0a4b96e35050ed9a0
Source noteuspto-grants-1999_12