Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Potassium Hydroxide | HCID 14797 | — |
| Reactant | 2-Iodothiophene | HCID 18921 | — |
| Reactant | 4-Fluorothiophenol | HCID 67789 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 11356278 | HCID 11356278 | 69% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06784167B2 |
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| Source dataset | uspto-grants-2004_08 |
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| ORD ID | ord-aeb1776143cd4d2aaac62e730262a303 |
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| Source note | uspto-grants-2004_08 |
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