Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 2,6-Difluorobenzoyl chloride | HCID 87438 | — |
| Reactant | 141519-24-6 | HCID 15672688 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 15672689 | HCID 15672689 | 68% |
Reaction Steps
A solution of 8.83 g (0.05 mol) of 2,6-difluorobenzoyl chloride in 10 ml of tetrahydrofuran (THF), to which 5.6 g (0.055 mol) of triethylamine had been added, was added dropwise to a solution of 7.65 g (0.05 mol) of 2-trifluoromethyl-2-methylpyrrolidine in 25 ml of tetrahydrofuran (THF). The reaction is exothermic, and slow dropwise addition prevented the temperature from rising above +35° C. Stirring was continued for one hour at room temperature, and the mixture was then poured into 250 ml of ice-water and acidified using dilute hydrochloric acid, and the precipitate obtained was filtered off with suction, washed thoroughly with water and dried. 9.96 g (68% yield of theory) of N-(2,6-difluorobenzoyl)-2-trifluoromethyl-2-methyl-pyrrolidine of melting point 119°-120° C. are obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05254696 |
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| Source dataset | uspto-grants-1993_10 |
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| ORD ID | ord-84bbf33a1829406a8807ba752b775339 |
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| Source note | uspto-grants-1993_10 |
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