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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382854Generated: November 2, 2026

Thionyl Chloride → Methyl 2-chloro-3-chlorocarbonyl-4-methylsulfonylbenzoate

https://huagongshe.com/reaction/382854

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantMethyl 2-chloro-3-hydroxycarbonyl-4-methylsulfonylbenzoateHCID 18517418—
CatalystDimethylformamideHCID 6228—
SolventTolueneHCID 1140—
ProductMethyl 2-chloro-3-chlorocarbonyl-4-methylsulfonylbenzoateHCID 1851740894.9%

Reaction Steps

2 drops of dimethylformamide and 11.9 g (0.1 mol) of thionyl chloride were added to a solution of 6.0 g (0.021 mol) of methyl 2-chloro-3-hydroxycarbonyl-4-methylsulfonylbenzoate and in 50 ml of dry toluene. The solution was refluxed for 4 hours. After the solvent had been removed in vacuo, 6.2 g of methyl 2-chloro-3-chlorocarbonyl-4-methylsulfonylbenzoate were obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06310245B1
Source datasetuspto-grants-2001_10
ORD IDord-939f159b3fc64540b48465c514e2471a
Source noteuspto-grants-2001_10