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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911908Generated: October 27, 2026

Bromine → 1-(1-Acetylpiperidin-4-yl)-2-bromoethan-1-one

https://huagongshe.com/reaction/911908

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant1,4-DiacetylpiperidineHCID 2777250—
SolventMethanolHCID 887—
Product1-(1-Acetylpiperidin-4-yl)-2-bromoethan-1-oneHCID 77230326—

Reaction Steps

1,1′-(Piperidine-1,4-diyl)diethanone (38.0 g, 225 mmol) was dissolved in methanol (700 mL) and bromine (12.1 mL, 236 mmol) was added. After agitating for 3 hours the solvent was removed. The resulting solid was washed with ethyl acetate, then distributed between ethyl acetate and sodium carbonate. The organic phase was separated, washed with brine, dried and evaporated to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022223B2
Source datasetuspto-grants-2011_09
ORD IDord-ec871ec3268444dd86aae805128356d6
Source noteuspto-grants-2011_09