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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1049932Generated: October 31, 2026

4-Aminopyridine → HCID 86703930, compound

https://huagongshe.com/reaction/1049932

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-AminopyridineHCID 1727—
Reactant4-Chloro-6-iodoquinazolineHCID 11173809—
Catalyst1,4-Dioxane hydrochlorideHCID 20443148—
SolventDichloromethaneHCID 6344—
ProductHCID 86703930HCID 86703930—

Reaction Steps

To a vial was added 4-chloro-6-iodo-quinazoline (100 mg; 0.34 mmol, commercially available), pyridin-4-amine (3 equiv., 1.03 mmol, 97.19 mg, commercially available), and 2 drops of 4M HCl/dioxane. The reaction vial was heated until solids melted. LCMS of resultant solution showed clean product formation. Upon cooling the product re-solidified. The solid was suspended in dichloromethane:water, and collected by filtration. 95 mg of 6-iodo-N-(4-pyridyl)quinazolin-4-amine was recovered as an orange solid, which was carried on directly to the Suzuki step. LCMS M/Z (M+H)=350.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09382241B2
Source datasetuspto-grants-2016_07
ORD IDord-93781137f8ed4d6f968ad919adb14fcf
Source noteuspto-grants-2016_07