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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 630141Generated: October 29, 2026

Phosphorus tribromide → 4-(Bromomethyl)-3-chloro-5-ethylpyridine

https://huagongshe.com/reaction/630141

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus tribromideHCID 24614—
Reactant(3-Chloro-5-ethylpyridin-4-yl)methanolHCID 59589363—
SolventChloroformHCID 6212—
Product4-(Bromomethyl)-3-chloro-5-ethylpyridineHCID 59589367—

Reaction Steps

To a solution of (3-chloro-5-ethylpyridin-4-yl)methanol (1.83 g, 10.66 mmol) in anhydrous chloroform (40 mL) was added dropwise tribromophosphane (2.91 g, 1.01 mL, 10.75 mmol) at 0° C. The reaction mixture was allowed to stir overnight at room temperature. The solvent was evaporated to provide crude 4-(bromomethyl)-3-chloro-5-ethylpyridine, which was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09315521B2
Source datasetuspto-grants-2016_04
ORD IDord-960600119c494f84b732628c3a0a768f
Source noteuspto-grants-2016_04