Ammonia → HCID 19856560, Verbindung
Reaktionsgleichung
[CH2:1]([N:3]1[CH:8]=[C:7]([Br:9])[N:6]=[C:5](Br)[C:4]1=[O:11])[CH3:2].[NH3:12]>O1CCOCC1>[CH2:1]([N:3]1[CH:8]=[C:7]([Br:9])[N:6]=[C:5]([NH2:12])[C:4]1=[O:11])[CH3:2]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 4.6 g of 1-ethyl-3,5-dibromopyrazin-2-one, 9.6 ml of dioxane and 6.4 ml of 30% ammonia is stirred at 20°-25° C. for 15 hours. The product is filtered off and washed with alcohol and ether to give 1.3 g of 1-ethyl-3-amino-5-bromo-pyrazin-2-one with a melting point of 227°-230° C.
Aufarbeitung
- filtrationThe product is filtered off
- washwashed with alcohol and ether
Quellen und Nachweise
- ORD-Eintrag
- ord-04c295e7ac8b490e83a2d2960b49fd04
- Quelldatensatz
- uspto-grants-1989_01
- Patentnummer
- US04795486
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