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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1728636Generated: October 31, 2026

Hydrochloric Acid → 3-(3-Hexylthio-1,2,5-thiadiazol-4-yl)-6-methylpyridine

https://huagongshe.com/reaction/1728636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1-BromohexaneHCID 8101—
ReactantPotassium CarbonateHCID 11430—
Reactant3-(3-Chloro-1,2,5-thiadiazol-4-yl)-6-methylpyridineHCID 19075268—
ReactantSodium hydrogen sulfide hydrateHCID 53442613—
SolventDimethylformamideHCID 6228—
Product3-(3-Hexylthio-1,2,5-thiadiazol-4-yl)-6-methylpyridineHCID 19075369—

Reaction Steps

Sodium hydrogen sulfide monohydrate (0.33 g, 4.4 mmol) was added to a solution of 3-(3-chloro-1,2,5-thiadiazol-4-yl)-6-methylpyridine (0.85 g, 4 mmol) in DMF (20 ml) at room temperature and the reaction mixture was stirred for 1 h. Potassium carbonate (1.65 g, 12 mmol) and 1-hexylbromide (0.99 g, 6 mmol) were added and the reaction mixture was stirred for additionally 24 h. 1N HCl was added and the reaction mixture was extracted once with ether. The aqueous phase was basified with 50% NaOH and extracted with ether. The ether phases were dried and evaporated to give crude title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05328923
Source datasetuspto-grants-1994_07
ORD IDord-55bc1bbc1b9349488efc28d0b0544bf6
Source noteuspto-grants-1994_07