Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 82454Generated: October 25, 2026

Thionyl bromide → 4-(Bromomethyl)-2-chloropyridine

https://huagongshe.com/reaction/82454

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl bromideHCID 68176—
Reactant(2-Chloropyridin-4-yl)methanolHCID 7062237—
SolventDichloromethaneHCID 6344—
Product4-(Bromomethyl)-2-chloropyridineHCID 12954807—

Reaction Steps

To a solution of 2-chloropyridine-4-methanol (1.02 g, 7.10 mmol) in 15 mL of dichloromethane was added thionyl bromide (1.77 g, 8.53 mmol) dropwise. After 15 min, the reaction was quenched with saturated aqueous ammonium chloride. The organic solution was washed 2× with water, dried over sodium sulfate, filtered, and concentrated in vacuo to provide 4-(bromomethyl)-2-chloropyridine that gave a mass ion (ES+) of 208.0 for [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846702B2
Source datasetuspto-grants-2014_09
ORD IDord-17d0cd4dc70248268dec5a69fed8b35c
Source noteuspto-grants-2014_09