Sodium Azide → 3-(4-Azido-naphthalen-1-yl)-5-(3,5-dichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazole
Reaktionsgleichung
[N-:1]=[N+:2]=[N-:3].[Na+].[Cl:5][C:6]1[CH:7]=[C:8]([C:13]2([C:29]([F:32])([F:31])[F:30])[O:17][N:16]=[C:15]([C:18]3[C:27]4[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=4)[C:21](F)=[CH:20][CH:19]=3)[CH2:14]2)[CH:9]=[C:10]([Cl:12])[CH:11]=1>CN(C=O)C>[N:1]([C:21]1[C:22]2[C:27](=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:18]([C:15]2[CH2:14][C:13]([C:8]3[CH:7]=[C:6]([Cl:5])[CH:11]=[C:10]([Cl:12])[CH:9]=3)([C:29]([F:32])([F:30])[F:31])[O:17][N:16]=2)=[CH:19][CH:20]=1)=[N+:2]=[N-:3]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 80 °C
Versuchsvorschrift
Sodium azide (3.3 g) is added to a solution of 5-(3,5-dichloro-phenyl)-3-(4-fluoro-naphthalen-1-yl)-5-trifluoromethyl-4,5-dihydro-isoxazole (10.7 g) in DMF (50 ml). After 20 hours at 80° C. another portion of sodium azide is added (3.3 g) and the reaction mixture is stirred for 20 hours at 80° C. The solution is cooled to room temperature and the volume concentrated to 10 ml in vacuo. Water and ethyl acetate are added and the precipitate is collected after filtration to yield 3-(4-azido-naphthalen-1-yl)-5-(3,5-dichloro-phenyl)-5-trifluoromethyl-4,5-dihydro-isoxazole as a beige solid: 183-185° C.
Aufarbeitung
- temperatureThe solution is cooled to room temperature
- concentrationthe volume concentrated to 10 ml in vacuo
- additionWater and ethyl acetate are added
- customthe precipitate is collected
- filtrationafter filtration
Quellen und Nachweise
- ORD-Eintrag
- ord-0c941a55257c4888af9ed0e59ee787b2
- Quelldatensatz
- uspto-grants-2013_02
- Patentnummer
- US08377942B2
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