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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 612196Generated: October 25, 2026

Pyridinium chloride → 4-[(5-Chloro-2-hydroxyphenyl)amino]-6,7-dimethoxyquinoline-3-carbonitrile

https://huagongshe.com/reaction/612196

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridinium chlorideHCID 10176127—
Reactant4-Chloro-6,7-dimethoxy-quinoline-3-carbonitrileHCID 10586676—
Reactant2-Amino-3-chlorophenolHCID 19828962—
SolventGlycol monoethyl etherHCID 8076—
Product4-[(5-Chloro-2-hydroxyphenyl)amino]-6,7-dimethoxyquinoline-3-carbonitrileHCID 532885991.9%

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 15 mL of 2-ethoxyethanol and in the presence of 115.6 mg (1 mmol) of pyridine hydrochloride was reacted with 172.3 mg (1.2 mmol) of 2-amino-chlorophenol to give 326.4 mg (91.9%) of the product as a yellow solid, m.p.>250° C., mass (electrospray, m/e): M+H 355.8.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06002008
Source datasetuspto-grants-1999_12
ORD IDord-6fc98159b2134017892e89fd4437c5a3
Source noteuspto-grants-1999_12