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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2121453Generated: November 2, 2026

Bromine → 3-Bromopiperidin-4-one hydrobromide

https://huagongshe.com/reaction/2121453

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantButyl 4-oxopiperidine-1-carboxylateHCID 22732029—
SolventChloroformHCID 6212—
Product3-Bromopiperidin-4-one hydrobromideHCID 14196968163.8%

Reaction Steps

About 2.6 g of N-butoxycarbonyl-4-piperdone (FIG. 10b) was dissolved in about 70 ml of chloroform; to this solution was added about 2.08 g Br2 over a period of about 30 minutes. The reaction was continued for about 2 hours at room temperature during which a white precipitate of the compound of FIG. 10c was formed. The reaction mixture was filtered and washed with chloroform ether to yield about 2.76 g of the compound of FIG. 10c.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06696455B1
Source datasetuspto-grants-2004_02
ORD IDord-530324277cb844d0bac02d64ffa9875b
Source noteuspto-grants-2004_02