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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1484829Generated: October 27, 2026

2,4-Dichloropyrimidine → 2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)pyrimidin-4-amine

https://huagongshe.com/reaction/1484829

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-DichloropyrimidineHCID 77531—
ReactantHCID 178507266HCID 178507266—
SolventEthanolHCID 702—
Product2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)pyrimidin-4-amineHCID 5816911845%

Reaction Steps

The mixture of 2,4-dichloropyrimidine (2.0 g, 13.5 mmol, 1.0 equiv.), EtOH (6 mL) and 3-cyclopropyl-1H-pyrazol-5-amine (20.3 g, 20.3 mmol, 1.5 equiv.) was stirred at room temperature for 8 h. The reaction mixture was filtered to afford compound 2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)pyrimidin-4-amine (1.4 g, 45%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09422271B2
Source datasetuspto-grants-2016_08
ORD IDord-f82810ec3ea74213b309357012adc030
Source noteuspto-grants-2016_08