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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1837948Generated: November 2, 2026

Hydrochloric Acid → HCID 11356278, compound

https://huagongshe.com/reaction/1837948

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium HydroxideHCID 14797—
Reactant2-IodothiopheneHCID 18921—
Reactant4-FluorothiophenolHCID 67789—
SolventDimethylformamideHCID 6228—
ProductHCID 11356278HCID 1135627869%

Reaction Conditions

Temperature135 °C

Reaction Steps

To a degassed mixture of 2-iodothiophene (0.87 mL, 7.88 mmol), Cu2O (0.56 g, 3.9 mmol) and KOH (0.44 g, 7.8 mmol) in DMF (7.8 mL) was slowly added 4-fluorobenzenethiol (0.33 mL, 7.8 mmol). The resulting mixture was heated at 135° C. for 15 h, allowed to cool to room temperature and poured into a 0° C. 6N HCl solution. After 15 min. the precipitate was filtered and washed with benzene. The filtrate was extracted with benzene, dried (MgSO4) and concentrated under reduced pressure to give 2-(4-fluorophenylthio)thiophene (1.13 g, 69%) as a pale yellow oil: TLC (10% EtOAc/hex) Rf 0.49; HPLC ES-MS m/z (rel intensity) 210 (M+, 100).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06784167B2
Source datasetuspto-grants-2004_08
ORD IDord-aeb1776143cd4d2aaac62e730262a303
Source noteuspto-grants-2004_08