Azobisisobutyronitrile → HCID 19068194, Verbindung

Reaktionsgleichung

[CH2:1]([C:3]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][N:4]=1)[CH3:2].[Br:12]N1C(=O)CCC1=O.CC(N=NC(C#N)(C)C)(C#N)C>C(Cl)(Cl)(Cl)Cl>[Br:12][CH:1]([C:3]1[C:7]2[CH:8]=[CH:9][CH:10]=[CH:11][C:6]=2[O:5][N:4]=1)[CH3:2]

Komponenten

Versuchsvorschrift

A mixture of 5.3 g of 3-ethyl-1,2-benzisoxazole, 6.4 g of N-bromosuccinimide and 50 ml of carbon tetrachloride is refluxed for 1 h. Afterwards c. 50 mg of α,α-azoisobutyro-nitrile are added and the mixture is refluxed for a further 1 h. After cooling and filtering the mixture, the filtrate is concentrated under vacuum. The crude product is purified by chromatography over silica gel with ethyl acetate/hexane (1:1) to give 3-(1-bromoethyl)-1,2-benzisoxazole as an oil.