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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1193349Generated: October 29, 2026

Acetyl chloride → N-Methyl-1-(pyrimidin-4-yl)piperidin-4-amine dihydrochloride

https://huagongshe.com/reaction/1193349

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetyl chlorideHCID 6367—
Reactanttert-Butyl methyl(1-(pyrimidin-4-yl)piperidin-4-yl)carbamateHCID 66805510—
SolventEthanolHCID 702—
SolventDiethyl EtherHCID 3283—
ProductN-Methyl-1-(pyrimidin-4-yl)piperidin-4-amine dihydrochlorideHCID 6679893596%

Reaction Conditions

Temperature40 °C

Reaction Steps

tert-Butyl methyl(1-(pyrimidin-4-yl)piperidin-4-yl)carbamate (3.63 mmol, 1 eq) was dissolved in ethanol (13 ml), and acetyl chloride (18.13 mmol, 5.0 eq) was added while cooling with ice. The reaction mixture was then stirred for 2 hours at 40° C. The reaction mixture was concentrated under reduced pressure. A white precipitate formed from the concentrated solution. The suspension was diluted with diethyl ether and stirred for 1 hour at RT. Then the precipitate was filtered off with suction, washed with diethyl ether and dried. Yield: 96%

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08680159B2
Source datasetuspto-grants-2014_03
ORD IDord-8df638d975c44ca4898e3f215499516e
Source noteuspto-grants-2014_03