Diphosgene → 2,2,7-trifluoro-6-isocyanato-4-(prop-2-ynyl)-2H-benzo[b][1,4]oxazin-3(4H)-one
Reaktionsgleichung
[NH2:1][C:2]1[C:17]([F:18])=[CH:16][C:5]2[O:6][C:7]([F:15])([F:14])[C:8](=[O:13])[N:9]([CH2:10][C:11]#[CH:12])[C:4]=2[CH:3]=1.[O:19]=[C:20](Cl)OC(Cl)(Cl)Cl>C1(C)C=CC=CC=1>[F:15][C:7]1([F:14])[O:6][C:5]2[CH:16]=[C:17]([F:18])[C:2]([N:1]=[C:20]=[O:19])=[CH:3][C:4]=2[N:9]([CH2:10][C:11]#[CH:12])[C:8]1=[O:13]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To 6-amino-2,2,7-trifluoro-4-(prop-2-ynyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (5.1 g, 19.91 mmol) in dry toluene was dropwise added diphosgene (2.64 ml, 21.90 mmol) in dry toluene. The resulting mixture was stirred overnight at reflux. Concentrated and chased with toluene and used as such in the next step.
Aufarbeitung
- temperatureat reflux
- concentrationConcentrated
Quellen und Nachweise
- ORD-Eintrag
- ord-90520183cd774f5b989211512cb72e3f
- Quelldatensatz
- uspto-grants-2014_12
- Patentnummer
- US08916501B2
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