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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 649217Generated: October 30, 2026

Potassium Carbonate → HCID 20142793, compound

https://huagongshe.com/reaction/649217

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantPotassiumHCID 5462222—
ReactantHCID 20142798HCID 20142798—
ReactantHCID 178527775HCID 178527775—
SolventChloroformHCID 6212—
SolventDimethylformamideHCID 6228—
ProductHCID 20142793HCID 2014279368.3%

Reaction Steps

To a suspension of potassium salt of 2-mercaptobenzimidazole (1.3 g) and potassium carbonate (1.0 g) in dimethylformamide (15 ml) was added with stirring, a solution of 2-bromomethyl-4-ethoxy-3-methoxy-pyridine (1.6 g) in dimethylformamide (5 ml), and the mixture was stirred at room temperature for 30 minutes. The reaction mixture was diluted with chloroform (50 ml), washed with water, 1N-sodium hydroxide, and water in this order, dried, and evaporated. The residue was purified by column chromatography on silica gel (chloroform-methanol (50:1)), to give 2-[(4-ethoxy-3-methoxypyrid-2-yl)methylthio]benzimidazole (1.4 g) as a light yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04738975
Source datasetuspto-grants-1988_04
ORD IDord-e11a0ece7be14e39a223a2426426e570
Source noteuspto-grants-1988_04