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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 633133Generated: October 30, 2026

Cesium carbonate → HCID 66895718, compound

https://huagongshe.com/reaction/633133

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1-(2-Bromoethyl)pyrroleHCID 11651225—
ReactantMethyl 2-chloro-4-(methylsulfonamido)benzoateHCID 54238017—
SolventDimethylformamideHCID 6228—
ProductHCID 66895718HCID 66895718—

Reaction Steps

200 μL of 1-(2-bromoethyl)-1H-pyrrole and 556 mg of Cesium Carbonate were added to 150 mg of methyl 2-chloro-4-(methylsulfonamido)benzoate in DMF and stirred at room temperature for 16 hours. The reaction mixture was extracted in Ethyl Acetate twice with saturated bicarbonate and once with brine, dried over Magnesium Sulfate, filtered and concentrated to give methyl 4-(N-(2-(1H-pyrrol-1-yl)ethyl)methylsulfonamido)-2-chlorobenzoate. 230 mg of methyl 4-(N-(2-(1H-pyrrol-1-yl)ethyl)methylsulfonamido)-2-chlorobenzoate was hydrolyzed via Procedure M to yield 221 mg of crude 4-(N-(2-(1H-pyrrol-1-yl)ethyl)methylsulfonamido)-2-chlorobenzoic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321761B2
Source datasetuspto-grants-2016_04
ORD IDord-1972b8779599417bb4edb2eef7fe9110
Source noteuspto-grants-2016_04