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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1384615Generated: October 30, 2026

Thionyl Chloride → 4-(Chloromethyl)picolinonitrile hydrochloride

https://huagongshe.com/reaction/1384615

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant4-(Hydroxymethyl)pyridine-2-carbonitrileHCID 10725391—
SolventTolueneHCID 1140—
Product4-(Chloromethyl)picolinonitrile hydrochlorideHCID 2262506886%

Reaction Steps

A mixture of 2-cyano-4-hydroxymethylpyridine (0.51 g, 3.8 mmol)and thionyl chloride (0.6 ml) in toluene (20 ml) was stirred at room temperature for 1 hour. The volatiles were removed by evaporation and the residue azeotroped with toluene to give 4-chloromethyl-2-cyanopyridine hydrochloride (620 mg, 86%). 1H NMR Spectrum: (DMSOd6) 4.75(s, 2H); 7.75(dd, 1H); 8.05(s, 1H); 8.34(d, 1H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06258951B1
Source datasetuspto-grants-2001_07
ORD IDord-f037294e524e4b3fa9cdd47c72233552
Source noteuspto-grants-2001_07