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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2115784Generated: November 1, 2026

4-Chloro-6,7-dimethoxyquinoline → HCID 135742189, compound

https://huagongshe.com/reaction/2115784

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Chloro-6,7-dimethoxyquinolineHCID 459610—
ReactantSodium BicarbonateHCID 516892—
ReactantPyridinium hydrochlorideHCID 21584435—
SolventEthyl AcetateHCID 8857—
ProductHCID 135742189HCID 135742189—

Reaction Conditions

Temperature200 °C

Reaction Steps

In a tube with a stirring bar was introduced 4-chloro-6,7-dimethoxyquinoline (1.5 g, 6.71 mmol) and 15 g of pyridinium hydrochloride. The tube was sealed and the mixture stirred at 200° C. for 1 h. The reaction was cooled to RT and a saturated solution of NaHCO3 was added followed by EtOAc. The EtOAc layer was washed with a saturated solution of NaHCO3, and the aqueous solution was back extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4 and concentrated under vacuum. The crude mixture was used in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07435823B2
Source datasetuspto-grants-2008_10
ORD IDord-73bfe2cf004f49dd8333e559de371cbd
Source noteuspto-grants-2008_10