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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 52155Generated: October 28, 2026

Sodium Hydroxide → HCID 19962997, compound

https://huagongshe.com/reaction/52155

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 2-dimethylamino-3-(2-chloromethyl-3-methyl-4-pyridylthio)propionateHCID 19963007—
ReactantHCID 178527775HCID 178527775—
SolventEthanolHCID 702—
ProductHCID 19962997HCID 19962997—

Reaction Conditions

Temperature50 °C

Reaction Steps

2-Mercaptobenzimidazole (1.5 g) was dissolved in ethanol (20 ml) and thereto were added ethyl 2-dimethylamino-3-(2-chloromethyl-3-methyl-4-pyridylthio)propionate (3.16 g) and an aqueous solution (10 ml) of 1N sodium hydroxide. The mixture was stirred at 50° C. for 1 hour. The reaction mixture was concentrated under reduced pressure and water was added to the residue. The mixture was extracted with ethyl acetate. The extract was washed with water, dried over anhydrous magnesium sulfate and the solvent was distilled away under reduced pressure. The residue was subjected to column chromatography and eluted with chloroform-methanol to give 2-((3-methyl-4-(2-dimethylamino-2-ethoxycarbonylethylthio)-2-pyridyl)methylthio)-1H-benzimidazole as a pale yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05616581
Source datasetuspto-grants-1997_04
ORD IDord-a07681e536c14a6babcd99d4d6e6bef1
Source noteuspto-grants-1997_04