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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 541229Generated: November 1, 2026

Hydrochloric Acid → 6-(Piperidin-4-yl)nicotinonitrile hydrochloride

https://huagongshe.com/reaction/541229

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 4-(5-cyanopyridin-2-yl)piperidine-1-carboxylateHCID 69453251—
SolventEthyl AcetateHCID 8857—
Product6-(Piperidin-4-yl)nicotinonitrile hydrochlorideHCID 6732460797%

Reaction Conditions

Temperature7.5 °C

Reaction Steps

Through a solution of tert-butyl 4-(5-cyanopyridin-2-yl)piperidine-1-carboxylate (compound 50.2, 200 mg, 0.70 mmol, 1.00 equiv) in ethyl acetate (20 mL) was bubbled HCl gas. The resulting mixture was stirred for 40 min at 5-10° C. The resulting precipitate was collected by filtration and dried to yield 150 mg (97%) of the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08871790B2
Source datasetuspto-grants-2014_10
ORD IDord-23be840a44d44791af03da026b9f4c04
Source noteuspto-grants-2014_10