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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2309031Generated: November 1, 2026

Thionyl Chloride → 1-(Chloromethyl)-4-(methylthio)benzene

https://huagongshe.com/reaction/2309031

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant[4-(Methylsulfanyl)phenyl]methanolHCID 592968—
SolventPyridineHCID 1049—
SolventDichloromethaneHCID 6344—
Product1-(Chloromethyl)-4-(methylthio)benzeneHCID 7012888.6%

Reaction Steps

A solution of thionyl chloride (47.6 g) in methylene chloride is slowly added to a solution of 4-(methylthio)benzyl alcohol (50.0 g) in pyridine (37.2 g) such that the temperature never exceeds 25° C. After the addition is complete the mixture is stirred an additional 2 hours at room temperature, then washed with water, dried, and the solvents removed. The resulting red oil is mixed with hexane which is decanted and evaporated to give 49.6 g of 4-(methylthio)benzyl chloride as a yellow oil, suitable for use in the reaction described next below.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04692448
Source datasetuspto-grants-1987_09
ORD IDord-3cddbaef9b2345bb83502460fe2f16ea
Source noteuspto-grants-1987_09