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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 20552Generated: October 26, 2026

Bromoacetic Acid → 1-Chloro-4,5-difluoro-2-(methylsulfonyl)benzene

https://huagongshe.com/reaction/20552

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromoacetic AcidHCID 6227—
ReactantSodium SulfiteHCID 24437—
ReactantSodium BicarbonateHCID 516892—
Reactant2-Chloro-4,5-difluorobenzenesulfonyl chlorideHCID 2773523—
SolventWaterHCID 962—
Product1-Chloro-4,5-difluoro-2-(methylsulfonyl)benzeneHCID 5934686148%

Reaction Conditions

Temperature150 °C

Reaction Steps

2-Chloro-4,5-difluorobenzenesulfonyl chloride (300 mg) was added to a solution of sodium sulfite (306 mg) and sodium bicarbonate (153 mg) in water (4 mL). The mixture was heated to 150° C. in a sealed microwave vial for 400 seconds and allowed to cool. The mixture was treated with bromoacetic acid (253 mg) in water (1 mL), and heated to 150° C. for 300 seconds then allowed to cool, following which the precipitate was removed by filtration and dried in vacuo to give the desired compound (132 mg). The material was used without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745475B2
Source datasetuspto-grants-2010_06
ORD IDord-b692961d75f642889f4ac786d8c9eff8
Source noteuspto-grants-2010_06