N-bromobutanimide → 3-Bromo-4,5,6-trimethoxyphthalide
Reaktionsgleichung
[CH3:1][O:2][C:3]1[C:12]([O:13][CH3:14])=[C:11]([O:15][CH3:16])[CH:10]=[C:9]2[C:4]=1[CH2:5][O:6][C:7]2=[O:8].[Br:17]N1C(=O)CCC1=O.N(CCCC#N)=NCCCC#N>C(Cl)(Cl)(Cl)Cl>[Br:17][CH:5]1[C:4]2[C:9](=[CH:10][C:11]([O:15][CH3:16])=[C:12]([O:13][CH3:14])[C:3]=2[O:2][CH3:1])[C:7](=[O:8])[O:6]1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
4,5,6-Trimethoxyphthalide (11.4 gms; 0.05 mole), N-bromosuccinimide (8.9 gms; 0.05 mole) and azobisbutyronitrile (0.1 gms) were refluxed gently in dry carbon tetrachloride (200 mls) for 2 hours. The solution was cooled, the succinimide filtered off and the solvent removed in vacuo, leaving a yellowish solid which fumed in the air.