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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 903361Generated: October 31, 2026

Thionyl Chloride → 2-Chloromethyl-3,4-dimethoxypyridinium chloride

https://huagongshe.com/reaction/903361

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant3,4-Dimethoxy-2-pyridinemethanolHCID 10725809—
SolventChloroformHCID 6212—
Product2-Chloromethyl-3,4-dimethoxypyridinium chlorideHCID 16216928—

Reaction Steps

2-Hydroxymethyl-3,4-dimethoxypyridine was reacted with thionyl chloride in chloroform to give 2-chloromethyl-3,4-dimethoxypyridine hydrochloride, m.p. 158°-9° (decomp), which was reacted with cysteamine hydrochloride and sodium ethoxide in ethanol to give 2-(3,4-dimethoxy-2-pyridylmethylthio)-ethylamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04227000
Source datasetuspto-grants-1980_10
ORD IDord-6098d5e0de424a8cba261b14515832c1
Source noteuspto-grants-1980_10