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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2036964Generated: November 1, 2026

Acetonitrile → (7-(Cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-ylethyl)benzonitrile

https://huagongshe.com/reaction/2036964

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
ReactantTriethylamineHCID 8471—
ReactantCyclopropylamineHCID 69828—
Reactant3-((7-Chloropyrazolo[1,5-a]pyrimidin-5-yl)methyl)benzonitrileHCID 86654653—
SolventWaterHCID 962—
Product(7-(Cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-ylethyl)benzonitrileHCID 8665465483%

Reaction Conditions

Temperature80 °C

Reaction Steps

To the reaction flask, 3((7-chloropyrazolo[1,5-a]pyrimidin-5-yl)methyl)benzonitrile (400 mg, 1.5 mmol) was added along with cyclopropylamine (115 μL, 1.6 mmol), triethylamine (230 μL, 1.6 mmol), and acetonitrile (3 mL). The reaction was stirred at room temperature for 8 hours at 80° C. then cooled to room temperature, diluted with water, filtered and washed with water. The product, 3-((7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-yl)methyl)benzonitrile, was collected as a solid in 83% yield after drying under vacuum overnight. LCMS (M+1=290)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575177B2
Source datasetuspto-grants-2013_11
ORD IDord-b944f62468f14de5b3e88cba04317cd4
Source noteuspto-grants-2013_11