3-Butyn-2-ol → 1-(3-Bromo-isoxazol-5-yl)-ethanol
Reaktionsgleichung
[Br:1][C:2](Br)=[N:3][OH:4].[CH3:6][CH:7]([OH:10])[C:8]#[CH:9]>>[Br:1][C:2]1[CH:9]=[C:8]([CH:7]([OH:10])[CH3:6])[O:4][N:3]=1Komponenten
3
Versuchsvorschrift
Reaction of dibromoformaldoxime with 3-butyn-2-ol gives 3-bromo-5-(1-hydroxyethyl)-isoxazole which is converted by oxidation into 3-bromo-5-acetylisoxazole, an intermediate for the preparation of 1-(3-bromoisoxazol-5-yl)-2-tert.butylamine-ethanol, a compound having broncodilating activity (European Patent No. 16255) known as Broxaterol.
Quellen und Nachweise
- ORD-Eintrag
- ord-ce8fed9ef9c9486888926d94a4cda4ea
- Quelldatensatz
- uspto-grants-1988_09
- Patentnummer
- US04772719
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