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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 384623Generated: October 31, 2026

4,6-Dichloropyrimidine → HCID 59613383, compound

https://huagongshe.com/reaction/384623

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4,6-DichloropyrimidineHCID 70943—
ReactantAminopyrazineHCID 78747—
ReactantSodium t-butoxideHCID 23676156—
CatalystHCID 178418851HCID 178418851—
SolventTolueneHCID 1140—
ProductHCID 59613383HCID 5961338379.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 2-aminopyrazine (230 mg, 2.42 mmol), sodium tert-butoxide (232 mg, 2.42 mmol) and bis(tri-t-butylphosphine)palladium (0) (51 mg, 0.1 mmol) in toluene (2 mL) was degassed under a stream of nitrogen over 10 min. 4,6-Dichloropyrimidine (300 mg, 2.01 mmol) was added to the mixture and the reaction was heated at 80° C. for 2 h. After cooling, the solution was passed through a PS-SH cartridge and the solvent removed in vacuo. The residue was triturated with dichloromethane and the resulting solid was collected and dried by vacuum filtration to give crude 6-chloro-N-(pyrazin-2-yl)pyrimidin-4-amine (333 mg) which was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08367658B2
Source datasetuspto-grants-2013_02
ORD IDord-2f713325a8874fdf9a01c673f7e37f87
Source noteuspto-grants-2013_02