Trifluoroacetic acid → HCID 14368703, Verbindung
Reaktionsgleichung
[C:1]1([C:7](C2C=CC=CC=2)(C2C=CC=CC=2)O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.FC(F)(F)C(O[C:26](=O)[C:27]([F:30])(F)F)=O.[F:34][C:35](F)(F)[C:36](O)=O>>[F:30][C:27]1[CH:26]=[C:35]([F:34])[CH:36]=[C:6]2[C:5]=1[CH:4]=[CH:3][CH:2]=[C:1]2[CH3:7]Komponenten
4
Versuchsvorschrift
2.5 g of 5,7-Difluoro-1-methyl-tetralol, 3.6 g of triphenylmethanol and 2.6 g of trifluoroacetic acid anhydride are refluxed for 5 hours in 16 ml of trifluoroacetic acid. The mixture is poured onto ice-water and extracted with dichloromethane. The organic phase is washed neutral with sodium bicarbonate solution, dried and concentrated. The oily crude product can be purified by chromatography over silica gel (eluant:hexane).
Aufarbeitung
- additionThe mixture is poured onto ice-water