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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1670537Generated: October 29, 2026

Sodium Carbonate → HCID 178433557, compound

https://huagongshe.com/reaction/1670537

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant2-MethylimidazoleHCID 12749—
ReactantChlorosulfonic acidHCID 24638—
SolventThionyl ChlorideHCID 24386—
ProductHCID 178433557HCID 17843355740%

Reaction Conditions

Temperature150 °C

Reaction Steps

Carefully add chlorosulfonic acid (30 mL) to neat 2-methylimidazole (5 g, 60.9 mmol). Heat the mixture at 150° C. for 3 h and cool to room temperature. Add thionyl chloride (10 mL), heat at 100° C. for 3 h and cool to room temperature. Carefully pour the mixture into ice. Slowly add solid sodium carbonate to neutralize the solution. Filter the precipitate formed and wash with water. Dry the solid under high vacuum overnight at 45° C. to give the desired intermediate (4.38 g, 40%). MS (ES+) m/z: 181 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07994163B2
Source datasetuspto-grants-2011_08
ORD IDord-9ef7d026e5f84a4bb1a2e141502b06f6
Source noteuspto-grants-2011_08