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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 500141Generated: October 30, 2026

4-Methylpyrazole → HCID 67225261, compound

https://huagongshe.com/reaction/500141

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-MethylpyrazoleHCID 3406—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Amino-5-bromopyrimidineHCID 231310—
Reactant1-N,2-N-dimethylcyclohexane-1,2-diamineHCID 551074—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethylformamideHCID 6228—
ProductHCID 67225261HCID 67225261—

Reaction Steps

A suspension of 4-methyl-1H-pyrazole (0.72 g, 0.0088 mol), 5-bromopyrimidin-2-amine (1.3 g, 7.3 mmol), copper(I) iodide (58.2 mg, 0.306 mmol), N,N′-dimethylcyclohexane-1,2-diamine (0.193 mL, 1.22 mmol), potassium carbonate (1.77 g, 12.8 mmol) in N,N-dimethylformamide (5.0 mL) was irradiated under microwave at 180° C. for 1 h. After cooling, the mixture was purified by chromatography on silica gel with methanol in methylene chloride (0-10%) to afford the desired product. LCMS: (M+H)=176.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07767675B2
Source datasetuspto-grants-2010_08
ORD IDord-7296540251054f7fae6d52320ebf1e16
Source noteuspto-grants-2010_08