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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 50536Generated: October 25, 2026

Hydrochloric Acid → 2-[4-(Piperidin-1-yl)-phenylamino]-4-phenylamino-quinazoline dihydrochloride

https://huagongshe.com/reaction/50536

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-chloro-N-phenylquinazolin-4-amineHCID 317908—
Reactant4-(Piperidin-1-yl)anilineHCID 413501—
SolventIsopropanolHCID 3776—
Solvent1,4-DioxaneHCID 31275—
Product2-[4-(Piperidin-1-yl)-phenylamino]-4-phenylamino-quinazoline dihydrochlorideHCID 22639809—

Reaction Steps

A mixture of 2-chloro-4-phenylamino-quinazoline (0.18 g) and N-(4-aminophenyl)-piperidine (0.164 g) is heated for 3 min to produce a melt which is dissolved in isopropanol (4 ml). 4 N HCl in dioxane (1 ml) is added. Recrystallization from ethanol and diethylether yields 2-[4-(piperidin-1-yl)-phenylamino]-4-phenylamino-quinazoline dihydrochloride, Rf (A1) 0.64, FAB-MS: (M+H)+=396. m.p.: (decomposition).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06713265B1
Source datasetuspto-grants-2004_03
ORD IDord-3d7a4c451e044c15b84fbe6eaeee2d6b
Source noteuspto-grants-2004_03