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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2098355Generated: October 30, 2026

Potassium Carbonate → HCID 66865208, compound

https://huagongshe.com/reaction/2098355

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-(Bromomethyl)-3-(trifluoromethyl)benzeneHCID 123061—
ReactantN-(1-Methyl-1H-benzimidazol-2-yl)-benzenesulfonamideHCID 391368—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 66865208HCID 66865208—

Reaction Conditions

Temperature120 °C

Reaction Steps

To a solution of N-(1-methyl-1H-benzimidazol-2-yl)-benzenesulfonamide (100 mg, 0.35 mmol) in DMF (2 mL) was added 1-bromomethyl-3-trifluoromethyl-benzene (166.4 mg, 0.70 mmol) and potassium carbonate (48 mg). The resulting mixture was heated to 120° C. in a microwave reactor for 1 h and then diluted with EtOAc, washed with H2O and the organic layer was dried over Na2SO4, filtered, and concentrated in vacuo. The resultant residue was purified by flash column chromatography (SiO2), eluting with a hexanes-EtOAc gradient to yield N-[1-methyl-3-(3-trifluoromethyl-benzyl)-1,3-dihydro-benzimidazol-2-ylidene]-benzenesulfonamide (2nd compound to elute off the column, 99.0 mg, 64%). MS 446 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08450497B2
Source datasetuspto-grants-2013_05
ORD IDord-c8203822467c4c2abaac9646aa282502
Source noteuspto-grants-2013_05