Ethanol → HCID 20093979, Verbindung
Reaktionsgleichung
[Cl:1][CH2:2][C:3]1[N:4]=[C:5]([NH:12][NH2:13])[C:6]2[S:11][CH:10]=[CH:9][C:7]=2[N:8]=1.[CH2:14](O)C>C([O-])([O-])OCC>[Cl:1][CH2:2][C:3]1[N:4]2[CH:14]=[N:13][N:12]=[C:5]2[C:6]2[S:11][CH:10]=[CH:9][C:7]=2[N:8]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 125 °C
Versuchsvorschrift
4. 15.7 g of 2-(chloromethyl)-4-hydrazinothieno[3,2-d]pyrimidine are suspended in 280ml of ethyl orthoformate. The suspension is heated (bath temp. 125° C.) while stirring and the ethanol which results is distilled off. After 3 h., the mixture is cooled to 0° C., the precipitate is filtered off and washed with ethanol. The product is dried in a vacuum. There are obtained 15.2 g of 5-(chloromethyl)thieno[2,3-e][1,2,4]triazolo[4,3-c]-pyrimidine. m.p. above 400° C. (dec.).