Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([CH3:10])=[N:7][C:6]=2[CH:11]=1.[Br:12]N1C(=O)CCC1=O.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(Cl)(Cl)(Cl)Cl>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([CH2:10][Br:12])=[N:7][C:6]=2[CH:11]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of the benzoxazole (1.3 g) (Step 2) in CCl4 (15 mL) was treated with N-bromo-succinimide (NBS) (1.5 g) and benzoyl peroxide (38 mg) at reflux using a U.V. lamp for 24 hours. Filtration, evaporation, and flash chromatography of the residue using 1:1 hexane/toluene afforded the title compound which was used as such for the next step.
Aufarbeitung
- temperatureat reflux
- filtrationFiltration, evaporation, and flash chromatography of the residue
Quellen und Nachweise
- ORD-Eintrag
- ord-c8a92444ed334775971a2479e214d719
- Quelldatensatz
- uspto-grants-1990_09
- Patentnummer
- US04957932
Verknüpfte Notizen
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