Reaktionsgleichung
[C:1]1([CH:7]2[CH2:12][C:11](=O)[C:10]3[CH:14]=[CH:15][CH:16]=[CH:17][C:9]=3[O:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.CO.C(=O)([O-])[O-].[K+].[K+].Cl.[NH2:27][OH:28]>O>[OH:28][N:27]=[C:11]1[C:10]2[CH:14]=[CH:15][CH:16]=[CH:17][C:9]=2[O:8][CH:7]([C:1]2[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=2)[CH2:12]1Komponenten
6
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 2,3-dihydro-2-phenyl-4H-1-benzopyran-4-one (50.0 g), methanol (535 ml), water (50 ml), potassium carbonate (59.3 g), and hydroxylamine HCl (59.8 g) was heated at reflux for 16 hours, then poured into ice-water; the oxime of 2,3-dihydro-2-phenyl-4H-1-benzopyran-4-one was filtered off, washed with water, then dried in air. Yield: 52 g.
Aufarbeitung
- temperaturewas heated
- temperatureat reflux for 16 hours
- filtrationthe oxime of 2,3-dihydro-2-phenyl-4H-1-benzopyran-4-one was filtered off
- washwashed with water
- customdried in air
Quellen und Nachweise
- ORD-Eintrag
- ord-7e3eeb01189240eeb01b6d98e7b78069
- Quelldatensatz
- uspto-grants-1983_02
- Patentnummer
- US04371541
Verknüpfte Notizen
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