Reaktionsgleichung
[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[C:9]1[O:13][C:12]([CH:14]=O)=[CH:11][CH:10]=1.C([O-])(=O)C.[Na+].Cl.[NH2:22][OH:23]>O>[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[C:9]1[O:13][C:12]([CH:14]=[N:22][OH:23])=[CH:11][CH:10]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 5-(2,4-dichlorophenyl)-2-furancarboxaldehyde (635 g, 2.63 moles), anhydrous sodium acetate (432 g, 5.26 moles), hydroxylamine hydrochloride (366 g, 5.26 moles), SDA #30 (9184 ml) and water (918 ml), was refluxed for 51/3 hours and allowed to stand overnight. The mixture was added to ice/H2O (42 liters), stirred 1 hour and filtered. The grayish-tan solid was washed with water (10 liters), filtered and dried at 65° to 660 g (98%).
Aufarbeitung
- temperaturewas refluxed for 51/3 hours
- filtrationfiltered
- washThe grayish-tan solid was washed with water (10 liters)
- filtrationfiltered
- customdried at 65° to 660 g (98%)
Quellen und Nachweise
- ORD-Eintrag
- ord-f31b852d434643aaa384fb2fff829726
- Quelldatensatz
- uspto-grants-1982_06
- Patentnummer
- US04336199
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