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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1373041Generated: October 25, 2026

Hydrochloric Acid → 4-(Dimethylamino)piperidine dihydrochloride

https://huagongshe.com/reaction/1373041

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDimethylamine, hydrochlorideHCID 10473—
ReactantTriacetoxyborohydrideHCID 2724942—
Reactant4-Boc-piperidinoneHCID 22318161—
ReactantTert-butyl 4-(dimethylamino)piperidine-1-carboxylateHCID 22591376—
SolventDichloromethaneHCID 6344—
SolventTriethylamineHCID 8471—
Product4-(Dimethylamino)piperidine dihydrochlorideHCID 22591440—

Reaction Steps

Dimethylamine hydrochloride (430 mg) was added to a methylene chloride (10 ml) solution containing 4-(tert-butoxycarbonyl)piperidone (1.0 g), and under ice-cooling, triethylamine (0.84 ml) and triacetoxyborohydride (1.17 g) were further added thereto, and the mixture was stirred at room temperature for 3 hours to undergo reaction, thereby obtaining N-tert-butoxycarbonyl-4-dimethylaminopiperidine. This compound was acid-treated with hydrochloric acid to obtain 4-(dimethylamino)piperidine-dihydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07160877B2
Source datasetuspto-grants-2007_01
ORD IDord-37ea7e00cb64456e9762af9786c415b8
Source noteuspto-grants-2007_01