Ethanol → 5-Ethoxy-2-methylpyrazolo[1,5-a]pyrido[3,4-e]pyrimidine
Reaktionsgleichung
Cl[C:2]1[C:7]2[CH:8]=[N:9][CH:10]=[CH:11][C:6]=2[N:5]2[N:12]=[C:13]([CH3:15])[CH:14]=[C:4]2[N:3]=1.[Na].[CH2:17]([OH:19])[CH3:18]>O>[CH2:17]([O:19][C:2]1[C:7]2[CH:8]=[N:9][CH:10]=[CH:11][C:6]=2[N:5]2[N:12]=[C:13]([CH3:15])[CH:14]=[C:4]2[N:3]=1)[CH3:18]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
2.2 g. of 5-chloro-2-methylpyrazolo[1,5-a]pyrido[3,4-e]pyrimidine are added to a solution of 0.5 g. of sodium in 30 ml. of ethanol. The solution is refluxed with stirring for 12 hours. 10 ml. of water are added and the crystalline 5-ethoxy-2-methylpyrazolo[1,5-a]pyrido[3,4-e]pyrimidine is filtered off, yield: 1.4 g. (61%); m.p. 156.2° (methanol).
Aufarbeitung
- temperatureThe solution is refluxed
- filtrationthe crystalline 5-ethoxy-2-methylpyrazolo[1,5-a]pyrido[3,4-e]pyrimidine is filtered off
Quellen und Nachweise
- ORD-Eintrag
- ord-0d9d9bffcc0f401e8a1d1b162124b44d
- Quelldatensatz
- uspto-grants-1978_01
- Patentnummer
- US04066645
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