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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1934922Generated: November 1, 2026

Hydrochloric Acid → 3-Quinolinecarbonitrile, 4-hydroxy-

https://huagongshe.com/reaction/1934922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetonitrileHCID 6342—
ReactantSodium MethoxideHCID 10942334—
ReactantAnthranilic acid, N-dimethylaminomethylene-, methyl esterHCID 13058944—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
Product3-Quinolinecarbonitrile, 4-hydroxy-HCID 3539349—

Reaction Steps

A stirred mixture of 1.03 g of methyl 2-(dimethylaminomethyleneamino)benzoate, 0.54 g of sodium methoxide, 1.04 ml of acetonitrile, and 10 ml of toluene was refluxed for 18 h. The mixture was cooled, treated with water, and brought to pH 3 by addition of dilute HCl. The resulting solid was extracted with ethyl acetate. The extract was washed with water, dried and evaporated. The residue was recrystallized from ethanol to give a solid, mp 290-300° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06384051B1
Source datasetuspto-grants-2002_05
ORD IDord-f9e34bda3027493b83d4e328ef761266
Source noteuspto-grants-2002_05