HuagongsheHuagongshe Chemistry Print Report · For research reference only
Triethylamine → ethyl 1-(4-methanesulfonylaminophenyl)-5-trifluoromethyl-1H-pyrazole-4-carboxylate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Methanesulfonyl chloride | HCID 31297 | — |
| Reactant | Ethyl 1-(4-aminophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate | HCID 2808376 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | ethyl 1-(4-methanesulfonylaminophenyl)-5-trifluoromethyl-1H-pyrazole-4-carboxylate | HCID 22288382 | 15.3% |
Reaction Steps
Methanesulfonyl chloride (80 mg) was added to a mixture of ethyl 1-(4-aminophenyl)-5-trifluoromethyl-1H-pyrazole-4-carboxylate (150 mg), triethylamine (76 mg) and THF (2 ml) under ice-cooling, followed by stirring at room temperature for 4 hours. Thereafter, the same treatment of Example 2 was carried out to give ethyl 1-(4-methanesulfonylaminophenyl)-5-trifluoromethyl-1H-pyrazole-4-carboxylate (29 mg) as a colorless solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06958339B2 |
| Source dataset | uspto-grants-2005_10 |
| ORD ID | ord-d03618c7383142c19f32481c347d903a |
| Source note | uspto-grants-2005_10 |