Reaktionsgleichung
[CH3:1][N:2]1[CH:6]=[CH:5][CH:4]=[C:3]1[C:7]1[O:11][N:10]=[CH:9][C:8]=1[C:12](=[O:20])[NH:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1.[OH-].[Na+]>C(O)C>[CH3:1][N:2]1[CH:6]=[CH:5][CH:4]=[C:3]1[C:7](=[O:11])[CH:8]([C:12](=[O:20])[NH:13][C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1)[C:9]#[N:10]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
The solution of 0.3 g of 5-(1-methyl-2-pyrrolyl)-4-phenylcarbamoylisoxazole, 10 ml of 5% aqueous sodium hydroxide and the minimum amount of ethanol, is warmed on the steam cone for 5 minutes. It is filtered, acidified with 5 N hydrochloric acid and the crystals formed collected. They are washed with water and triturated with methanol to give the 1-methyl-β-oxo-α-phenylcarbamoyl-2-pyrrolpropionitrile melting at 170°-172°; it is identical with that prepared as described previously, i.e. Examples 1, 6, 9 or 10.
Aufarbeitung
- filtrationIt is filtered
- customthe crystals formed
- customcollected
- washThey are washed with water
- customtriturated with methanol
Quellen und Nachweise
- ORD-Eintrag
- ord-1a382aad4abc4c96bfb0adcedbcfb569
- Quelldatensatz
- uspto-grants-1981_03
- Patentnummer
- US04256759
Verknüpfte Notizen
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