HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 537478Generated: October 30, 2026
Potassium Carbonate → HCID 68156825, compound
https://huagongshe.com/reaction/537478
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 5-Bromo-2-chloro-3-methylpyridine | HCID 285434 | — |
| Reactant | 4-(Trifluoromethyl)-1H-pyrazole | HCID 12777795 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 68156825 | HCID 68156825 | 30% |
Reaction Steps
A flask was charged with 5-bromo-2-chloro-3-methylpyridine (250 mg, 1.21 mmol), 4-(trifluoromethyl)-1H-pyrazole (165 mg, 1.21 mmol), potassium carbonate (512 mg, 3.63 mmol), and anhydrous dimethylformamide (1.21 mL). The reaction was heated at 85 to 130° C. for 36 h. The reaction was concentrated to give 690 mg of crude material. Purification by silica gel flash chromatography (0-5% ethyl acetate in heptane) afforded 5-bromo-3-methyl-2-(4-(trifluoromethyl)-1H-pyrazol-1-yl)pyridine (containing approximately 30% starting material) was carried forth to the next reaction. MS (M+1) 308.1.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08859591B2 |
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| Source dataset | uspto-grants-2014_10 |
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| ORD ID | ord-2bd02721b2fe41f1b9d066cdf97d10d0 |
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| Source note | uspto-grants-2014_10 |
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