HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1496639Generated: October 29, 2026
Triethylamine → N,5-dimethyl-N-pyridazin-4-yl-1-[2,2,2-trifluoro-1-(trifluoromethyl)ethyl]pyrazole-4-carboxamide
https://huagongshe.com/reaction/1496639
Participants
| Role | Name | HCID | Charge |
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| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1) | HCID 9886157 | — |
| Reactant | N-methylpyridazin-4-amine | HCID 23080684 | — |
| Reactant | 5-Methyl-1-[2,2,2-trifluoro-1-(trifluoromethyl)ethyl]pyrazole-4-carboxylic acid | HCID 89157284 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | N,5-dimethyl-N-pyridazin-4-yl-1-[2,2,2-trifluoro-1-(trifluoromethyl)ethyl]pyrazole-4-carboxamide | HCID 89157296 | 90% |
Reaction Steps
A mixture of 300 mg 5-methyl-1-[2,2,2-trifluoro-1-(trifluoromethyl)ethyl]pyrazole-4-carboxylic acid, 127 mg N-methylpyridazin-4-amine, 710 mg O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate [HATU] and 220 mg triethylamine in 30 ml THF was stirred at 20-25° C. for about 24 h, then evaporated. The residue was taken up in 21 ml CH2Cl2, washed with 3×14 ml water, dried over Na2SO4, then evaporated. Purification by flash chromatography (CH2Cl2/MeOH) gave 130 mg of the title compound (90% purity).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09198422B2 |
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| Source dataset | uspto-grants-2015_12 |
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| ORD ID | ord-85b950d354a049d3810f5ec68fd1796e |
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| Source note | uspto-grants-2015_12 |
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