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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2245324Generated: November 2, 2026

Water → HCID 22282192, compound

https://huagongshe.com/reaction/2245324

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
Reactant3-ThiophenecarboxaldehydeHCID 68135—
ReactantHCID 80456514HCID 80456514—
SolventEthanolHCID 702—
SolventSodium BisulfiteHCID 23665763—
ProductHCID 22282192HCID 2228219286.4%

Reaction Steps

7.48 g of thiophene-3-aldehyde was stirred in 65 ml of 40% NaHSO3 solution for two hours. After 15 g of N2-(4-fluorophenyl)-4-methoxybenzene-1,2-diamine in 50 ml of ethanol was added, it was boiled for 4 hours, and stirring was continued overnight. The batch was dispersed between water and ethyl acetate, and the organic phase was washed with water. After drying on sodium sulfate and concentration by evaporation of the filtrate, 18.1 g of crude 6-methoxy-1-(4-fluorophenyl)-2-(3-thienyl)-1H-benzimidazole is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07683081B2
Source datasetuspto-grants-2010_03
ORD IDord-228adb8d0bcd4b81981f9ffd7b048209
Source noteuspto-grants-2010_03