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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 875178Generated: October 29, 2026

Potassium Carbonate → HCID 66865208, compound

https://huagongshe.com/reaction/875178

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 numberUS08981113B2
Source datasetuspto-grants-2015_03
ORD IDord-f6a7bb4ab1e549b3bf9d48071dc7d0eb
Source noteuspto-grants-2015_03