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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 451498Generated: October 30, 2026

Hydrochloric Acid → 1-(2-Chloropyridin-4-yl)piperidin-4-amine dihydrochloride

https://huagongshe.com/reaction/451498

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 1-(2-chloropyridin-4-yl)piperidin-4-ylcarbamateHCID 86656708—
SolventDichloromethaneHCID 6344—
Product1-(2-Chloropyridin-4-yl)piperidin-4-amine dihydrochlorideHCID 86656709199.9%

Reaction Steps

To a solution of tert-butyl 1-(2-chloropyridin-4-yl)piperidin-4-ylcarbamate (1.00 g, 3.21 mmol) in dichloromethane (16 mL) was added HCl (2 M in diethylether, 8.02 mL, 16.0 mmol) and the reaction mixture was stirred at room temperature over night for 18 hours. The mixture was then filtered off and the white precipitate washed with dichloromethane and diethylether and dried to afford the title compound (913 mg, 99%) as a white solid. MS ISP (m/e): 212.1/214.1 [(M+H)+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08486967B2
Source datasetuspto-grants-2013_07
ORD IDord-0ee34b7580454f07942e541b9b7384c2
Source noteuspto-grants-2013_07