Perchloric Acid → 1-(2,2,2-Trifluoro-ethyl)-1,3-dihydro-indol-2-one
Reaktionsgleichung
[F:1][C:2]([F:16])([F:15])[CH2:3][N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6](=O)[C:5]1=[O:14].Cl(O)(=O)(=O)=O>[Pd].C(O)(=O)C>[F:16][C:2]([F:1])([F:15])[CH2:3][N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[CH2:6][C:5]1=[O:14]Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
A mixture of 1-(2,2,2-trifluoro-ethyl)-1H-indole-2,3-dione (9.2 g, 40 mmol) and 10% palladium on carbon (2.4 g) in acetic acid (100 mL) and 70% perchloric acid (6.4 mL, 80 mmol) was hydrogenated in a Parr apparatus for 22 hours. The mixture was filtered through diatomaceous earth, diluted with water (1.5 L) and the precipitate was collected and dried. mp 155-162° C. Yield 7.5 g (87%).