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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 514556Generated: October 26, 2026

Hydrochloric Acid → 2-[4-(2-Hydroxyethyl)pyrazol-1-yl]pyridine-4-carbonitrile

https://huagongshe.com/reaction/514556

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl AcetateHCID 8857—
ReactantSodium BicarbonateHCID 516892—
Reactant2-[4-[2-[Tert-butyl(dimethyl)silyl]oxyethyl]pyrazol-1-yl]pyridine-4-carbonitrileHCID 86725661—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
Product2-[4-(2-Hydroxyethyl)pyrazol-1-yl]pyridine-4-carbonitrileHCID 8672566391%

Reaction Steps

To a solution of 2-[4-[2-[tert-butyl(dimethyl)silyl]oxyethyl]pyrazol-1-yl]pyridine-4-carbonitrile (1.2 g, 3.6 mmol) in THF (15 mL) at 0° C. was added 3N HCl (5 mL). The reaction mixture was then stirred for 2 hours at room temperature. Cool to 0° C., added ethyl acetate, water and acidified with NaHCO3 to pH=8. The mixture was then extracted with ethylacetate, concentrated to afford the title compound (700 mg, 91%). [M+H] Calc'd for C11H10N4O, 215. Found, 215.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09107916B2
Source datasetuspto-grants-2015_08
ORD IDord-40445f82da574d88ac98469830096aa8
Source noteuspto-grants-2015_08