HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 583820Generated: October 31, 2026
Potassium Carbonate → HCID 22324281, compound
https://huagongshe.com/reaction/583820
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 1,2-Difluoro-4-nitrobenzene | HCID 123053 | — |
| Reactant | pyridine-4-thiol | HCID 178418431 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 22324281 | HCID 22324281 | — |
Reaction Steps
21 g (188.9 mmol) of 4-mercaptopyridine, 30.05 g (188.9 mmol) of 3,4-difluoro-nitrobenzene and 60.05 g (434.5 mmol) of potassium carbonate are dissolved in dimethylformamide, and the mixture is stirred at 40° C. for 3 hours. The reaction solution is then diluted with 500 mL of ethyl acetate and 300 mL of water. The aqueous phase is extracted five times with in each case 100 mL of ethyl acetate. The combined organic phases are washed with 200 mL of saturated sodium chloride solution, dried over sodium sulphate and concentrated under reduced pressure using a rotary evaporator. The residue is purified by MPLC (mobile phase: ethyl acetate:cyclohexane 1:1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06924290B2 |
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| Source dataset | uspto-grants-2005_08 |
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| ORD ID | ord-5bef5a8277794de1a9f9a81cf3ccb7f3 |
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| Source note | uspto-grants-2005_08 |
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