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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 624743Generated: October 31, 2026

Acetonitrile → 3-((7-(Cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-yl)methyl)benzonitrile

https://huagongshe.com/reaction/624743

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
ReactantTriethylamineHCID 8471—
ReactantCyclopropylamineHCID 69828—
Reactant3-((7-Chloropyrazolo[1,5-a]pyrimidin-5-yl)methyl)benzonitrileHCID 86654653—
SolventWaterHCID 962—
Product3-((7-(Cyclopropylamino)pyrazolo[1,5-a]pyrimidin-5-yl)methyl)benzonitrileHCID 6721691683%

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 numberUS09303033B2
Source datasetuspto-grants-2016_04
ORD IDord-0674d9149cfc4da292533af68e9d9638
Source noteuspto-grants-2016_04