Trifluoroacetic acid → 2-(4-(Methylsulfonamido)-1,3-dioxoisoindolin-2-yl)acetic acid
Reaktionsgleichung
[CH3:1][S:2]([NH:5][C:6]1[CH:14]=[CH:13][CH:12]=[C:11]2[C:7]=1[C:8](=[O:24])[N:9]([CH2:16][C:17]([O:19]C(C)(C)C)=[O:18])[C:10]2=[O:15])(=[O:4])=[O:3].C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH3:1][S:2]([NH:5][C:6]1[CH:14]=[CH:13][CH:12]=[C:11]2[C:7]=1[C:8](=[O:24])[N:9]([CH2:16][C:17]([OH:19])=[O:18])[C:10]2=[O:15])(=[O:3])=[O:4]Komponenten
4
Versuchsvorschrift
A mixture of tert-butyl 2-(4-(methylsulfonamido)-1,3-dioxoisoindolin-2-yl)acetate (85 mg, 0.240 mmol) and TFA (370 μl, 4.80 mmol) in 5 ml of DCM was stirred at room temperature overnight. The mixture was evaporated to obtain 2-(4-(methylsulfonamido)-1,3-dioxoisoindolin-2-yl)acetic acid (72 mg, 0.240 mmol, 100% yield, MS/ESI+ 298.9 [MH]+) and used as such in the following reaction without further purification.