Trifluoroacetic anhydride → HCID 18317950, Verbindung
Reaktionsgleichung
[Cl:1][C:2]1[CH:3]=[C:4]2[C:12](=[CH:13][CH:14]=1)[NH:11][C:10]1[CH:9]([C:15]3([C:19]([NH:21]O)=O)[CH2:18][CH2:17][CH2:16]3)[NH:8][CH2:7][CH2:6][C:5]2=1.O1CCOCC1.FC(F)(F)C(OC(=O)C(F)(F)F)=O>N1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[C:4]2[C:12](=[CH:13][CH:14]=1)[NH:11][C:10]1[CH:9]([C:15]3([C:19]#[N:21])[CH2:18][CH2:17][CH2:16]3)[NH:8][CH2:7][CH2:6][C:5]2=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
0.9 g of the compound obtained in Step B is stirred for 2 hours at ambient temperature in a solution of 10 ml of dioxane, 0.8 ml of pyridine and 0.42 ml of trifluoroacetic anhydride. After evaporating off the solvent, chromatography of the residue on silica gel (dichloromethane/ethyl acetate: 96/4) enables isolation of the expected product, which crystallises in heptane.
Aufarbeitung
- customAfter evaporating off the solvent, chromatography of the residue on silica gel (dichloromethane/ethyl acetate: 96/4)
- customcrystallises in heptane
Quellen und Nachweise
- ORD-Eintrag
- ord-70696473b2d2465b9711534b663ae9c3
- Quelldatensatz
- uspto-grants-2002_02
- Patentnummer
- US06350757B1
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