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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1703566Generated: October 31, 2026

Thionyl Chloride → 4-Methylthiobenzoyl chloride

https://huagongshe.com/reaction/1703566

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant4-Methylthiobenzoic acidHCID 178425911—
SolventDichloromethaneHCID 6344—
Product4-Methylthiobenzoyl chlorideHCID 15555005—

Reaction Steps

A solution of 50 g. of 4-methylthiobenzoic acid in dichloromethane is treated with excess thionyl chloride at its reflux temperature until no acid remains (according to infrared spectral analysis). Distillation at reduced pressure (b.p. 140° C./0.2 mm. Hg) provides a clear liquid which gradually solidifies to provide 4-methylthiobenzoyl chloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04124725
Source datasetuspto-grants-1978_11
ORD IDord-33391affce5543a9a7a005afb8c1cc2a
Source noteuspto-grants-1978_11