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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2065673Generated: October 31, 2026

Hydrochloric Acid → 2-Amino-3-[4-(quinolin-4-ylamino)-phenyl]propionic acid dihydrochloride dihydrate

https://huagongshe.com/reaction/2065673

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-ChloroquinolineHCID 69140—
Reactant4-Amino-DL-phenylalanine hydrateHCID 458753—
Solvent1,4-DioxaneHCID 31275—
Product2-Amino-3-[4-(quinolin-4-ylamino)-phenyl]propionic acid dihydrochloride dihydrateHCID 67360265129.7%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 2-amino-3-(4-aminophenyl)-propionic acid hydrate (0.27 g, 1.5 mmol), 4-chloro-quinoline (0.245 g, 1.5 mmol) and conc. HCl (0.43 g) in dioxane (3 mL) is stirred at 120° C. temperature for 30 min in a tightly closed Pierce glass reaction vial. After cooling the liquid phase is separated and the solid residue is washed with acetonitrile (3×3 mL) and diethyl ether (5 mL) to give the title compound (0.405 g, 65%) as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08288549B2
Source datasetuspto-grants-2012_10
ORD IDord-60b5088708854a399b33666dfb785d5b
Source noteuspto-grants-2012_10